#2D81BB#2D81BB

#2D81BB is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 58.0% C 0.119 H 243.2°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#2D81BB
RGB	rgb(45, 129, 187)
HSL	hsl(205, 61%, 45%)
HSV	hsv(205, 76%, 73%)
CMYK	cmyk(75.9%, 31%, 0%, 26.7%)
CIE-LAB	lab(51.66, -5.05, -37.53)
CIE-LCH	lch(51.66, 37.87, 262.34°)
OKLab	oklab(58.04% -0.0537 -0.1064)
OKLCH	oklch(58.04% 0.119 243.2)
XYZ	xyz(17.8986, 19.8442, 49.8911)
Luminance	0.1985 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D81BB #BB672D

analogous

#2DBBAE #2D81BB #2D3ABB

triadic

#2D81BB #BB2D81 #81BB2D

tetradic

#2D81BB #AE2DBB #BB672D #3ABB2D

square

#2D81BB #AE2DBB #BB672D #3ABB2D

split-complementary

#2D81BB #BB2D3A #BBAE2D

monochromatic

#153D58 #215F8A #2D81BB #509FD5 #82BAE1

Accessibility & contrast

On white

4.23

#2D81BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#2D81BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2D81BB

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D81BB	#FFFFFF	#000000	##000000
##2D81BB	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6682BE

Deuteranopia (green-blind)

#5275BA

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #2d81bb;
/* rgb */ color: rgb(45, 129, 187);
/* oklch */ color: oklch(58.0% 0.119 243.2);

Tailwind

colors: {
  custom: {
    50: '#7aa5cf',
    500: '#2d81bb',
    950: '#000000',
  },
}

SCSS

$custom: #2d81bb;
$custom-light: #7aa5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2d81bb",
  "rgb": {
    "r": 45,
    "g": 129,
    "b": 187
  },
  "hsl": {
    "h": 204.507,
    "s": 61.207,
    "l": 45.49
  },
  "oklch": {
    "l": 0.58038,
    "c": 0.11914,
    "h": 243.2
  },
  "luminance": 0.19846
}

Semantic roles & 50–950 ramp

primary

#2D81BB

secondary

#CA9B7A

accent

#8543E4

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #2D81BB

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

Preview Lab → · Contrast checker → · Palette generator →