#3D81BB#3D81BB

#3D81BB is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.6% C 0.113 H 247.0°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#3D81BB
RGB	rgb(61, 129, 187)
HSL	hsl(208, 51%, 49%)
HSV	hsv(208, 67%, 73%)
CMYK	cmyk(67.4%, 31%, 0%, 26.7%)
CIE-LAB	lab(52.15, -2.73, -36.73)
CIE-LCH	lch(52.15, 36.83, 265.74°)
OKLab	oklab(58.56% -0.0441 -0.1038)
OKLCH	oklch(58.56% 0.113 247)
XYZ	xyz(18.7410, 20.2785, 49.9305)
Luminance	0.2028 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D81BB #BB773D

analogous

#3DBBB6 #3D81BB #3D42BB

triadic

#3D81BB #BB3D81 #81BB3D

tetradic

#3D81BB #B63DBB #BB773D #42BB3D

square

#3D81BB #B63DBB #BB773D #42BB3D

split-complementary

#3D81BB #BB3D42 #BBB63D

monochromatic

#1F415F #2E618D #3D81BB #689FCE #96BCDD

Accessibility & contrast

On white

4.15

#3D81BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#3D81BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D81BB

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D81BB	#FFFFFF	#000000	##000000
##3D81BB	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6783BE

Deuteranopia (green-blind)

#5677BA

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3d81bb;
/* rgb */ color: rgb(61, 129, 187);
/* oklch */ color: oklch(58.6% 0.113 247.0);

Tailwind

colors: {
  custom: {
    50: '#80a5cf',
    500: '#3d81bb',
    950: '#000000',
  },
}

SCSS

$custom: #3d81bb;
$custom-light: #80a5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3d81bb",
  "rgb": {
    "r": 61,
    "g": 129,
    "b": 187
  },
  "hsl": {
    "h": 207.619,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.58563,
    "c": 0.11283,
    "h": 247
  },
  "luminance": 0.2028
}

Semantic roles & 50–950 ramp

primary

#3D81BB

secondary

#C8A78C

accent

#8E4EDA

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3D81BB

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

Preview Lab → · Contrast checker → · Palette generator →