#2D81B8#2D81B8

#2D81B8 is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 57.9% C 0.116 H 241.8°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#2D81B8
RGB	rgb(45, 129, 184)
HSL	hsl(204, 61%, 45%)
HSV	hsv(204, 76%, 72%)
CMYK	cmyk(75.5%, 29.9%, 0%, 27.8%)
CIE-LAB	lab(51.52, -6.13, -36.04)
CIE-LCH	lch(51.52, 36.56, 260.35°)
OKLab	oklab(57.88% -0.0546 -0.102)
OKLCH	oklch(57.88% 0.116 241.8)
XYZ	xyz(17.5808, 19.7170, 48.2173)
Luminance	0.1972 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D81B8 #B8642D

analogous

#2DB8AA #2D81B8 #2D3BB8

triadic

#2D81B8 #B82D81 #81B82D

tetradic

#2D81B8 #AA2DB8 #B8642D #3BB82D

square

#2D81B8 #AA2DB8 #B8642D #3BB82D

split-complementary

#2D81B8 #B82D3B #B8AA2D

monochromatic

#153C56 #215F87 #2D81B8 #4E9FD4 #80BAE0

Accessibility & contrast

On white

4.25

#2D81B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#2D81B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2D81B8

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D81B8	#FFFFFF	#000000	##000000
##2D81B8	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6782BA

Deuteranopia (green-blind)

#5475B7

Tritanopia (blue-blind)

#008F94

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #2d81b8;
/* rgb */ color: rgb(45, 129, 184);
/* oklch */ color: oklch(57.9% 0.116 241.8);

Tailwind

colors: {
  custom: {
    50: '#79a5cd',
    500: '#2d81b8',
    950: '#000000',
  },
}

SCSS

$custom: #2d81b8;
$custom-light: #79a5cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2d81b8",
  "rgb": {
    "r": 45,
    "g": 129,
    "b": 184
  },
  "hsl": {
    "h": 203.741,
    "s": 60.699,
    "l": 44.902
  },
  "oklch": {
    "l": 0.57876,
    "c": 0.11572,
    "h": 241.8
  },
  "luminance": 0.19719
}

Semantic roles & 50–950 ramp

primary

#2D81B8

secondary

#C99878

accent

#8344E4

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #2D81B8

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →