#3D81BC#3D81BC

#3D81BC is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.6% C 0.114 H 247.4°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#3D81BC
RGB	rgb(61, 129, 188)
HSL	hsl(208, 51%, 49%)
HSV	hsv(208, 68%, 74%)
CMYK	cmyk(67.6%, 31.4%, 0%, 26.3%)
CIE-LAB	lab(52.20, -2.39, -37.23)
CIE-LCH	lch(52.20, 37.30, 266.33°)
OKLab	oklab(58.62% -0.0438 -0.1053)
OKLCH	oklch(58.62% 0.114 247.4)
XYZ	xyz(18.8484, 20.3215, 50.4963)
Luminance	0.2032 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D81BC #BC783D

analogous

#3DBCB8 #3D81BC #3D42BC

triadic

#3D81BC #BC3D81 #81BC3D

tetradic

#3D81BC #B83DBC #BC783D #42BC3D

square

#3D81BC #B83DBC #BC783D #42BC3D

split-complementary

#3D81BC #BC3D42 #BCB83D

monochromatic

#1F4260 #2E618E #3D81BC #689FCE #96BCDD

Accessibility & contrast

On white

4.15

#3D81BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#3D81BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D81BC

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D81BC	#FFFFFF	#000000	##000000
##3D81BC	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)

#6783BF

Deuteranopia (green-blind)

#5577BB

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3d81bc;
/* rgb */ color: rgb(61, 129, 188);
/* oklch */ color: oklch(58.6% 0.114 247.4);

Tailwind

colors: {
  custom: {
    50: '#80a5d0',
    500: '#3d81bc',
    950: '#000000',
  },
}

SCSS

$custom: #3d81bc;
$custom-light: #80a5d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d81bc",
  "rgb": {
    "r": 61,
    "g": 129,
    "b": 188
  },
  "hsl": {
    "h": 207.874,
    "s": 51.004,
    "l": 48.824
  },
  "oklch": {
    "l": 0.58617,
    "c": 0.11404,
    "h": 247.4
  },
  "luminance": 0.20323
}

Semantic roles & 50–950 ramp

primary

#3D81BC

secondary

#C9A88C

accent

#8F4DDA

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3D81BC

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

Preview Lab → · Contrast checker → · Palette generator →