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#3da3d2

a balanced, vivid cyan · cool · closest name: Deep Sky Blue

RGB
61, 163, 210
HSL
199°, 62%, 53%
CMYK
71, 22, 0, 18
Luminance
0.3184

At a glance

Every number on this page in one read: what #3da3d2 is made of, how bright it looks, and which way it leans.

Hex
#3da3d2
Hue
199°
cyan
Saturation
62%
vivid
Lightness
53%
balanced
Brightness
82%
HSV value
Perceived
58%
weighted brightness
Luminance
0.3184
WCAG relative
Temperature
Cool
95/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
7.37:1
Closest name
Deep Sky Blue
ΔE2000 8.3
Where it sits
Hue199° of 360°
Saturation62%
Lightness53%
Temperature
Warm ← → Cool95% cool

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

Every format

HEX#3da3d2
RGBrgb(61, 163, 210)
HSLhsl(199, 62%, 53%)
CMYKcmyk(71%, 22%, 0%, 18%)
LABlab(63.2 -14.2 -32.4)
LCHlch(63.2 35.4 246.4)
OKLCHoklch(0.677 0.115 232.2)
Decimal4039634
Display P3color(display-p3 0.239 0.639 0.824)

Copy-ready code

/* CSS */
color: #3da3d2;
background-color: #3da3d2;
/* Tailwind (arbitrary) */
class="text-[#3da3d2] bg-[#3da3d2]"
/* SCSS */
$brand: #3da3d2;
/* SwiftUI */
Color(red: 0.239, green: 0.639, blue: 0.824)
/* Android */
Color.parseColor("#3da3d2")
/* Flutter */
Color(0xFF3DA3D2)
/* Python / OpenCV (BGR) */
(210, 163, 61)

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#000000 on #3da3d2 · 7.37:1
Use #000000AAA at every size.
Aa
White text · 2.85:1
AA fail · AA large fail · AAA fail
Aa
Black text · 7.37:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #3da3d2 as text scores 2.85:1 on white and 7.37:1 on black.

Accessibility — WCAG contrast

Aa
#3da3d2 on white: 2.85:1
AA ✗ fail · AA-large · AAA
Aa
#3da3d2 on black: 7.37:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #8CA1D4
deuteranopia · #7793D1
tritanopia · #00B0B3

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #3da3d2 is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F4F9FB
#E8F2F7
#CCE5F0
#A4D4EA
#76BEDF
#3da3d2
#2E97C7
#267EA6
#1F6484
#1A4A60
#102E3C
Base = 500Lightest = 50 · #F4F9FBDarkest = 950 · #102E3C
:root {
  --brand-50: #F4F9FB;
  --brand-100: #E8F2F7;
  --brand-200: #CCE5F0;
  --brand-300: #A4D4EA;
  --brand-400: #76BEDF;
  --brand-500: #3da3d2;
  --brand-600: #2E97C7;
  --brand-700: #267EA6;
  --brand-800: #1F6484;
  --brand-900: #1A4A60;
  --brand-950: #102E3C;
  --brand: #3da3d2;
  --brand-ink: #000000;
}

Colors that work with #3da3d2

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

Text on it#000000
Black wins here
Surface#F4F8FA
Tinted page background
Border#C0DFED
Hairlines and dividers
Muted text#4B829B
Captions on the surface
Accent#D74238
Second voice, not a rival
Dark variant#184E67
Hover, pressed, headers
Light variant#EAF5FA
Selected rows, tints
Dark surface#141F24
Dark-mode background
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

How to use #3da3d2

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

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate

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#D26C3D
Analogous left#3DD2B6
Analogous right#3D58D2
Split-complement 1#D23D58
Split-complement 2#D2B63D
Triadic 1#D23DA3
Triadic 2#A3D23D
Tetradic#B63DD2

RGB percentages

Red23.9%
Green63.9%
Blue82.4%

CMYK percentages

Cyan71.0%
Magenta22.4%
Yellow0.0%
Key (black)17.6%

Color previews

#3da3d2 text on a black background

contrast 7.37:1

Card sample

#3da3d2 text on a white background

contrast 2.85:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #3da3d2;
Background color
Panel with #3da3d2 background
background-color: #3da3d2;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #3da3d2;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(61, 163, 210, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(61, 163, 210, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3da3d2;
background: linear-gradient(135deg, #3da3d2, #3D40D2);

Monochromatic scale

Palettes built from #3da3d2

Shades — darker

Tints — lighter

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.

#3da3d2 in the real world

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

Industries
TechnologyTravelHealthcareMedia
Common UI roles
ButtonsLinksFocus statesCharts
Print note

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

#3da3d2, answered

What color is #3da3d2?

#3da3d2 is a balanced vivid cyan, closest to Deep Sky Blue (ΔE2000 8.3). It sits at 199° on the hue wheel with 62% saturation and 53% lightness, which reads as cool.

What is the RGB value of #3da3d2?

rgb(61, 163, 210) — 61 red, 163 green and 210 blue out of 255, or 23.9% / 63.9% / 82.4% by channel.

Is #3da3d2 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3184 and perceived brightness is 58%, so black text on it reaches 7.37:1.

Should I use black or white text on #3da3d2?

Black. It scores 7.37:1 against #3da3d2, versus 2.85:1 for white — AAA at any size.

What is the complementary color of #3da3d2?

#D26C3D sits directly opposite on the wheel. Softer options are the split-complements #D23D58 and #D2B63D, which give the same contrast with far less vibration.

What colors go well with #3da3d2?

For interface work: #F4F8FA as the surface, #C0DFED for borders, #4B829B for secondary text, #D74238 as an accent and #184E67 for hover and pressed states. For a palette, the analogous pair #3DD2B6 and #3D58D2 stays calm, while #D26C3D is the loudest partner.

What is #3da3d2 in CMYK for printing?

cmyk(71%, 22%, 0%, 18%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #3da3d2 warm or cool?

Cool — it scores 95 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #3DD2CA; nudged cooler, #3B91D4.

Work with #3da3d2 in the Color Lab