#3E81CB#3E81CB

#3E81CB is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.5% C 0.132 H 252.9°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#3E81CB
RGB	rgb(62, 129, 203)
HSL	hsl(211, 58%, 52%)
HSV	hsv(211, 69%, 80%)
CMYK	cmyk(69.5%, 36.5%, 0%, 20.4%)
CIE-LAB	lab(52.99, 3.04, -44.53)
CIE-LCH	lch(52.99, 44.64, 273.91°)
OKLab	oklab(59.49% -0.039 -0.1266)
OKLCH	oklch(59.49% 0.132 252.9)
XYZ	xyz(20.6124, 21.0343, 59.4620)
Luminance	0.2104 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E81CB #CB883E

analogous

#3EC8CB #3E81CB #423ECB

triadic

#3E81CB #CB3E81 #81CB3E

tetradic

#3E81CB #CB3EC8 #CB883E #3ECB42

square

#3E81CB #CB3EC8 #CB883E #3ECB42

split-complementary

#3E81CB #CB423E #C8CB3E

monochromatic

#1E4570 #2B63A1 #3E81CB #6EA0D8 #9EC0E5

Accessibility & contrast

On white

4.03

#3E81CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#3E81CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3E81CB

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E81CB	#FFFFFF	#000000	##000000
##3E81CB	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6086CE

Deuteranopia (green-blind)

#4B78CA

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3e81cb;
/* rgb */ color: rgb(62, 129, 203);
/* oklch */ color: oklch(59.5% 0.132 252.9);

Tailwind

colors: {
  custom: {
    50: '#83a5db',
    500: '#3e81cb',
    950: '#000000',
  },
}

SCSS

$custom: #3e81cb;
$custom-light: #83a5db;
$custom-dark: #000000;

JSON

{
  "hex": "#3e81cb",
  "rgb": {
    "r": 62,
    "g": 129,
    "b": 203
  },
  "hsl": {
    "h": 211.489,
    "s": 57.551,
    "l": 51.961
  },
  "oklch": {
    "l": 0.59491,
    "c": 0.13249,
    "h": 252.9
  },
  "luminance": 0.21036
}

Semantic roles & 50–950 ramp

primary

#3E81CB

secondary

#D1B494

accent

#9847E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3E81CB

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

Preview Lab → · Contrast checker → · Palette generator →