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#2ba5d2

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

RGB
43, 165, 210
HSL
196°, 66%, 50%
CMYK
80, 21, 0, 18
Luminance
0.3208

At a glance

Every number on this page in one read: what #2ba5d2 is made of, how bright it looks, and which way it leans.

Hex
#2ba5d2
Hue
196°
cyan
Saturation
66%
vivid
Lightness
50%
balanced
Brightness
82%
HSV value
Perceived
58%
weighted brightness
Luminance
0.3208
WCAG relative
Temperature
Cool
94/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
7.42:1
Closest name
Deep Sky Blue
ΔE2000 8.1
Where it sits
Hue196° of 360°
Saturation66%
Lightness50%
Temperature
Warm ← → Cool94% 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#2ba5d2
RGBrgb(43, 165, 210)
HSLhsl(196, 66%, 50%)
CMYKcmyk(80%, 21%, 0%, 18%)
LABlab(63.4 -17.4 -32.2)
LCHlch(63.4 36.5 241.7)
OKLCHoklch(0.677 0.121 228.3)
Decimal2860498
Display P3color(display-p3 0.169 0.647 0.824)

Copy-ready code

/* CSS */
color: #2ba5d2;
background-color: #2ba5d2;
/* Tailwind (arbitrary) */
class="text-[#2ba5d2] bg-[#2ba5d2]"
/* SCSS */
$brand: #2ba5d2;
/* SwiftUI */
Color(red: 0.169, green: 0.647, blue: 0.824)
/* Android */
Color.parseColor("#2ba5d2")
/* Flutter */
Color(0xFF2BA5D2)
/* Python / OpenCV (BGR) */
(210, 165, 43)

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 #2ba5d2 · 7.42:1
Use #000000AAA at every size.
Aa
White text · 2.83:1
AA fail · AA large fail · AAA fail
Aa
Black text · 7.42:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2ba5d2 as text scores 2.83:1 on white and 7.42:1 on black.

Accessibility — WCAG contrast

Aa
#2ba5d2 on white: 2.83:1
AA ✗ fail · AA-large · AAA
Aa
#2ba5d2 on black: 7.42:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #8DA2D4
deuteranopia · #7793D1
tritanopia · #00B2B4

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2ba5d2 is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3F9FB
#E8F3F8
#CBE7F1
#A2D8EC
#73C4E2
#45B1D9
#2ba5d2
#2385A9
#1C6A87
#184E62
#0F313D
Base = 600Lightest = 50 · #F3F9FBDarkest = 950 · #0F313D
:root {
  --brand-50: #F3F9FB;
  --brand-100: #E8F3F8;
  --brand-200: #CBE7F1;
  --brand-300: #A2D8EC;
  --brand-400: #73C4E2;
  --brand-500: #45B1D9;
  --brand-600: #2ba5d2;
  --brand-700: #2385A9;
  --brand-800: #1C6A87;
  --brand-900: #184E62;
  --brand-950: #0F313D;
  --brand: #2ba5d2;
  --brand-ink: #000000;
}

Colors that work with #2ba5d2

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#F4F9FA
Tinted page background
Border#C0E1ED
Hairlines and dividers
Muted text#4B859B
Captions on the surface
Accent#D72926
Second voice, not a rival
Dark variant#16536A
Hover, pressed, headers
Light variant#EAF6FB
Selected rows, tints
Dark surface#142024
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 #2ba5d2

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#D2582B
Analogous left#2BD2AC
Analogous right#2B51D2
Split-complement 1#D22B51
Split-complement 2#D2AC2B
Triadic 1#D22BA5
Triadic 2#A5D22B
Tetradic#AC2BD2

RGB percentages

Red16.9%
Green64.7%
Blue82.4%

CMYK percentages

Cyan79.5%
Magenta21.4%
Yellow0.0%
Key (black)17.6%

Color previews

#2ba5d2 text on a black background

contrast 7.42:1

Card sample

#2ba5d2 text on a white background

contrast 2.83:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2ba5d2;
Background color
Panel with #2ba5d2 background
background-color: #2ba5d2;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2ba5d2;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(43, 165, 210, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(43, 165, 210, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2ba5d2;
background: linear-gradient(135deg, #2ba5d2, #2B36D2);

Monochromatic scale

Palettes built from #2ba5d2

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.

#2ba5d2 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.

#2ba5d2, answered

What color is #2ba5d2?

#2ba5d2 is a balanced vivid cyan, closest to Deep Sky Blue (ΔE2000 8.1). It sits at 196° on the hue wheel with 66% saturation and 50% lightness, which reads as cool.

What is the RGB value of #2ba5d2?

rgb(43, 165, 210) — 43 red, 165 green and 210 blue out of 255, or 16.9% / 64.7% / 82.4% by channel.

Is #2ba5d2 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3208 and perceived brightness is 58%, so black text on it reaches 7.42:1.

Should I use black or white text on #2ba5d2?

Black. It scores 7.42:1 against #2ba5d2, versus 2.83:1 for white — AAA at any size.

What is the complementary color of #2ba5d2?

#D2582B sits directly opposite on the wheel. Softer options are the split-complements #D22B51 and #D2AC2B, which give the same contrast with far less vibration.

What colors go well with #2ba5d2?

For interface work: #F4F9FA as the surface, #C0E1ED for borders, #4B859B for secondary text, #D72926 as an accent and #16536A for hover and pressed states. For a palette, the analogous pair #2BD2AC and #2B51D2 stays calm, while #D2582B is the loudest partner.

What is #2ba5d2 in CMYK for printing?

cmyk(80%, 21%, 0%, 18%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2ba5d2 warm or cool?

Cool — it scores 94 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2BD2C2; nudged cooler, #288ED4.

Work with #2ba5d2 in the Color Lab