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blue · cool

#29294e

a deep, soft blue · cool · closest name: Midnight Blue

Token name suggestion: Cellar Cobalt

RGB
41, 41, 78
HSL
240°, 31%, 23%
CMYK
47, 47, 0, 69
Luminance
0.0261

#29294e is a deep soft blue, 240° on the wheel and 80/100 on the cool side. Put white text on it (13.80:1). As text it scores 13.80:1 on white — safe at any size. Nearest name is Midnight Blue, nearest Tailwind family is slate.

hsl(240 31% 23%)rgb(41 41 78)Base step 900AAA inkCool

At a glance

Every number on this page in one read: what #29294e is made of, how bright it looks, and which way it leans.

Hex
#29294e
Hue
240°
blue
Saturation
31%
soft
Lightness
23%
deep
Brightness
31%
HSV value
Perceived
18%
weighted brightness
Luminance
0.0261
WCAG relative
Temperature
Cool
80/100 cool
Color family
Blue
Tone
Soft
Best ink
White
13.80:1
Closest name
Midnight Blue
ΔE2000 10.8
Chroma
25.4
LCH, 0–130ish
OKLCH L
0.301
perceptual lightness
Tailwind
slate
500 · ΔE 26.1
Web-safe
#333366
nearest of 216
Where it sits
Hue240° of 360°
Saturation31%
Lightness23%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #29294e.

Temperature
Warm ← → Cool80% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red18%
Green61%
Blue21%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#29294e
HEX (8-digit)#29294eff
RGBrgb(41, 41, 78)
RGBArgba(41, 41, 78, 1)
HSLhsl(240, 31%, 23%)
HSV / HSBhsv(240, 47%, 31%)
HWBhwb(240 16% 69%)
CMYKcmyk(47%, 47%, 0%, 69%)
LABlab(18.4 11.2 -22.9)
LCHlch(18.4 25.4 296.1)
OKLCHoklch(0.301 0.066 281.7)
XYZ (D65)xyz(3.08, 2.61, 7.55)
Decimal2697550
Display P3color(display-p3 0.161 0.161 0.306)
Web-safe#333366

Copy-ready code

every platformclick to select
/* CSS */
color: #29294e;
background-color: #29294e;
/* CSS custom property */
--brand: #29294e;
/* Tailwind (arbitrary) */
class="text-[#29294e] bg-[#29294e]"
/* SCSS */
$brand: #29294e;
/* SwiftUI */
Color(red: 0.161, green: 0.161, blue: 0.306)
/* UIKit */
UIColor(red: 0.161, green: 0.161, blue: 0.306, alpha: 1)
/* Android XML */
<color name="brand">#29294E</color>
/* Android Compose */
Color(0xFF29294E)
/* Flutter */
Color(0xFF29294E)
/* Python / OpenCV (BGR) */
(78, 41, 41)
/* Python / PIL (RGB) */
(41, 41, 78)
/* Java AWT */
new Color(41, 41, 78)
/* .NET */
Color.FromArgb(255, 41, 41, 78)
/* OpenGL / Unity (0–1) */
(0.1608f, 0.1608f, 0.3059f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{41,41,78}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #29294e 85%, white);
border-color: color-mix(in oklab, #29294e 40%, transparent);
/* theme-aware in one line */
color: light-dark(#2C2C54, #D7D7EA);
/* relative colour syntax */
--hover: hsl(from #29294e h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F5F5F9;
  --brand-100: #ECECF3;
  --brand-200: #D5D5E7;
  --brand-300: #B5B5D8;
  --brand-400: #9191C5;
  --brand-500: #6C6CB2;
  --brand-600: #5454A0;
  --brand-700: #464686;
  --brand-800: #38386B;
  --brand-900: #29294e;
  --brand-950: #1B1B31;
  --brand: #29294e;
  --brand-ink: #ffffff;
  --brand-surface: #F5F5FA;
  --brand-border: #CACAE3;
  --brand-hover: #1D1D36;
  --brand-pressed: #10101F;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141424;
    --brand-ink: #D7D7EA;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5F5F9',
        100: '#ECECF3',
        200: '#D5D5E7',
        300: '#B5B5D8',
        400: '#9191C5',
        500: '#6C6CB2',
        600: '#5454A0',
        700: '#464686',
        800: '#38386B',
        900: '#29294e',
        950: '#1B1B31',
        DEFAULT: '#29294e',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5F5F9,
  '100': #ECECF3,
  '200': #D5D5E7,
  '300': #B5B5D8,
  '400': #9191C5,
  '500': #6C6CB2,
  '600': #5454A0,
  '700': #464686,
  '800': #38386B,
  '900': #29294e,
  '950': #1B1B31,
);
$brand-base: #29294e;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5F5F9", "$type": "color" },
      "100": { "$value": "#ECECF3", "$type": "color" },
      "200": { "$value": "#D5D5E7", "$type": "color" },
      "300": { "$value": "#B5B5D8", "$type": "color" },
      "400": { "$value": "#9191C5", "$type": "color" },
      "500": { "$value": "#6C6CB2", "$type": "color" },
      "600": { "$value": "#5454A0", "$type": "color" },
      "700": { "$value": "#464686", "$type": "color" },
      "800": { "$value": "#38386B", "$type": "color" },
      "900": { "$value": "#29294e", "$type": "color" },
      "950": { "$value": "#1B1B31", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#ffffff on #29294e · 13.80:1
Use #ffffffAAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 13.80:1 · recommended
AA pass · AA large pass · AAA pass
Aa
Black text · 1.52:1
AA fail · AA large fail · AAA fail
Reading the other direction: #29294e as text scores 13.80:1 on white and 1.52:1 on black.
Best tinted ink on it, if plain black or white feels flat: #EEEEF6 at 11.96:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#29294e · 13.80:1
AA on whitealready passes
#29294e
The quick fox
#29294e · 13.80:1
AAA on whitealready passes
#29294e
The quick fox
#7070B4 · 4.67:1
AA on black+34% L
#7070B4
The quick fox
#9292C6 · 7.15:1
AAA on black+44% L
#9292C6

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #29294E is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#29294e on white: 13.80:1
AA ✓ pass · AA-large · AAA
Aa
#29294e on black: 1.52:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #29294e as text on that neutral, and that neutral as text on #29294e.

NeutralRatioBoth directions
White13.80:1AaAa
Slate 5013.19:1AaAa
Slate 10012.60:1AaAa
Slate 20011.20:1AaAa
Slate 3009.30:1AaAa
Slate 4005.38:1AaAa
Slate 5002.90:1AaAa
Slate 6001.82:1AaAa
Slate 7001.33:1AaAa
Slate 8001.06:1AaAa
Slate 9001.29:1AaAa
Black1.52:1AaAa
Colour vision deficiency
true color
protanopia · #1B2E4F
deuteranopia · #192C4D
tritanopia · #1D3137

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #29294e is pinned to step 900; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5F5F9
#ECECF3
#D5D5E7
#B5B5D8
#9191C5
#6C6CB2
#5454A0
#464686
#38386B
#29294e
#1B1B31
Base = 900Lightest = 50 · #F5F5F9Darkest = 950 · #1B1B31Text step on white = 500
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.016 281.7);
  --brand-100: oklch(0.94 0.026 281.7);
  --brand-200: oklch(0.88 0.040 281.7);
  --brand-300: oklch(0.80 0.051 281.7);
  --brand-400: oklch(0.72 0.061 281.7);
  --brand-500: oklch(0.64 0.066 281.7);
  --brand-600: oklch(0.56 0.066 281.7);
  --brand-700: oklch(0.48 0.062 281.7);
  --brand-800: oklch(0.40 0.055 281.7);
  --brand-900: oklch(0.32 0.046 281.7);
  --brand-950: oklch(0.24 0.036 281.7);
}

Colors that work with #29294e

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#ffffff
White wins here
Surface#F5F5FA
Tinted page background
Border#CACAE3
Hairlines and dividers
Muted text#4F4F96
Captions on the surface
Accent#504627
Second voice, not a rival
Dark variant#2C2C54
Hover, pressed, headers
Light variant#EEEEF6
Selected rows, tints
Dark surface#141424
Dark-mode background
Hover#1D1D36
One step down in lightness
Pressed#10101F
Two steps down
Disabled#5A5A8D
Chroma pulled out
Focus ring#292962
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #29294e

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Body text and links on white
  • Charts, tags and secondary surfaces
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Text on black or near-black surfaces
  • Black text placed on it
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Any size
Safe as a fill behind white type
Yes
Safe as a 1px border on white
Yes

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

trustedcalmcompetentcorporate

The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. The low lightness adds weight and formality.

Worth knowing

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityHigh
  • EnergyMedium
  • Weight77/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#4E4E29
Analogous left#293B4E
Analogous right#3B294E
Split-complement 1#4E3B29
Split-complement 2#3B4E29
Triadic 1#4E2929
Triadic 2#294E29
Tetradic#4E293B
On the wheel
Base+30°−30°+120°+240°+180°240°

#29294e sits at 240°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red16.1%
Green16.1%
Blue30.6%
R · 0–255
41
0x29
G · 0–255
41
0x29
B · 0–255
78
0x4e

CMYK percentages

Cyan47.4%
Magenta47.4%
Yellow0.0%
Key (black)69.4%

Total ink coverage is 164%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#29294e text on a black background

contrast 1.52:1

Card sample

#29294e text on a white background

contrast 13.80:1

Card sample

#29294e on grey

12.60:1

#29294e on its own surface

12.70:1

#29294e on its dark surface

1.32:1

CSS3 live lab

Text font color

The quick brown fox

color: #29294e;
Background color
Panel with #29294e background
background-color: #29294e;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #29294e;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(41, 41, 78, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(41, 41, 78, 0.45);
Border & gradient
Gradient panel
border: 3px solid #29294e;
background: linear-gradient(135deg, #29294e, #42294E);
Gradient text

Gradient headline

background: linear-gradient(90deg, #29294e, #4B294E);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #29294e;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #29294e;
caret-color: #29294e;
Left rule
Pull quote or callout
border-left: 4px solid #29294e;
Ring + tint
Selected chip
background: #EEEEF6;
box-shadow: inset 0 0 0 2px #29294e;
Conic badge
68%
background: conic-gradient(#29294e 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #29294e over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(41, 41, 78, 0.5)
rgb(41 41 78 / 50%)
#29294e80
hsl(240 31% 23% / 50%)
color-mix(in srgb, #29294e 50%, transparent)
Alpha8-digit hexFlat on white
10%#29294e1a#EAEAED
20%#29294e33#D4D4DC
40%#29294e66#A9A9B8
60%#29294e99#7F7F95
80%#29294ecc#545471

Gradients from #29294e

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #3E3E76, #29294e 45%, #2C2C54);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #29294e, #331E3A);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #29294e, #4E4E29);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #49498A 0%, #29294e 45%, #2C2C54 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F5F5FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #3B596F 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #4F3362 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #2C2C54 0%, transparent 65%), #29294e;

Monochromatic scale

Palettes built from #29294e

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#29294e in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Converts to four-color process without much drama. Proof it anyway.

On screens

Very dark values collapse into each other on cheap panels — leave more lightness between your darkest steps than the numbers suggest.

In dark mode

Too dim on dark surfaces at 1.52:1 — lift it to #7070B4 for body text, or reserve it for fills.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#29294e, answered

What color is #29294e?

#29294e is a deep soft blue, closest to Midnight Blue (ΔE2000 10.8). It sits at 240° on the hue wheel with 31% saturation and 23% lightness, which reads as cool.

What is the RGB value of #29294e?

rgb(41, 41, 78) — 41 red, 41 green and 78 blue out of 255, or 16.1% / 16.1% / 30.6% by channel.

What is #29294e in HSL and HSV?

hsl(240, 31%, 23%) and hsv(240, 47%, 31%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #29294e a light or a dark color?

It is a dark color. Relative luminance is 0.0261 and perceived brightness is 18%, so white text on it reaches 13.80:1.

Should I use black or white text on #29294e?

White. It scores 13.80:1 against #29294e, versus 1.52:1 for black — AAA at any size.

Is #29294e accessible on a white background?

#29294e on white scores 13.80:1, which clears AAA at every size.

What is the complementary color of #29294e?

#4E4E29 sits directly opposite on the wheel. Softer options are the split-complements #4E3B29 and #3B4E29, which give the same contrast with far less vibration.

What colors go well with #29294e?

For interface work: #F5F5FA as the surface, #CACAE3 for borders, #4F4F96 for secondary text, #504627 as an accent and #2C2C54 for hover and pressed states. For a palette, the analogous pair #293B4E and #3B294E stays calm, while #4E4E29 is the loudest partner.

What is #29294e in CMYK for printing?

cmyk(47%, 47%, 0%, 69%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #29294e warm or cool?

Cool — it scores 80 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #36294E; nudged cooler, #28364F.

Which Tailwind color is closest to #29294e?

The slate family — its 500 step is #64748b, ΔE2000 26.1 away. That is a visible difference, so define #29294e as a custom token rather than reaching for the built-in.

How do I use #29294e in Tailwind CSS?

Inline it as an arbitrary value with bg-[#29294e] or text-[#29294e], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #29294e with 50% opacity?

rgba(41, 41, 78, 0.5), or #29294e80 in eight-digit hex. Over white that composites to #9494A7; over black, #151527.

Is #29294e a web-safe color?

No. The nearest web-safe colour is #333366, ΔE2000 5.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #29294e mean?

As a blue, it reads trusted, calm, competent. The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed. At this moderate chroma the association is present but not shouted.

What gradient works with #29294e?

The safest is same-hue elevation: linear-gradient(135deg, #3E3E76, #29294e 45%, #2C2C54). For more colour, a short hue run to #331E3A keeps it rich without turning muddy.

Work with #29294e in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #29294e at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.