#3B81BA#3B81BA

#3B81BA is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.4% C 0.112 H 246.0°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3B81BA
RGB	rgb(59, 129, 186)
HSL	hsl(207, 52%, 48%)
HSV	hsv(207, 68%, 73%)
CMYK	cmyk(68.3%, 30.6%, 0%, 27.1%)
CIE-LAB	lab(52.03, -3.41, -36.34)
CIE-LCH	lch(52.03, 36.50, 264.64°)
OKLab	oklab(58.44% -0.0457 -0.1027)
OKLCH	oklch(58.44% 0.112 246)
XYZ	xyz(18.5135, 20.1735, 49.3630)
Luminance	0.2018 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B81BA #BA743B

analogous

#3BBAB3 #3B81BA #3B41BA

triadic

#3B81BA #BA3B81 #81BA3B

tetradic

#3B81BA #B33BBA #BA743B #41BA3B

square

#3B81BA #B33BBA #BA743B #41BA3B

split-complementary

#3B81BA #BA3B41 #BAB33B

monochromatic

#1E415D #2C618C #3B81BA #649FCE #93BBDD

Accessibility & contrast

On white

4.17

#3B81BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3B81BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B81BA

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B81BA	#FFFFFF	#000000	##000000
##3B81BA	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6883BC

Deuteranopia (green-blind)

#5677B9

Tritanopia (blue-blind)

#008F95

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3b81ba;
/* rgb */ color: rgb(59, 129, 186);
/* oklch */ color: oklch(58.4% 0.112 246.0);

Tailwind

colors: {
  custom: {
    50: '#7fa5cf',
    500: '#3b81ba',
    950: '#000000',
  },
}

SCSS

$custom: #3b81ba;
$custom-light: #7fa5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b81ba",
  "rgb": {
    "r": 59,
    "g": 129,
    "b": 186
  },
  "hsl": {
    "h": 206.929,
    "s": 51.837,
    "l": 48.039
  },
  "oklch": {
    "l": 0.58435,
    "c": 0.11247,
    "h": 246
  },
  "luminance": 0.20175
}

Semantic roles & 50–950 ramp

primary

#3B81BA

secondary

#C8A589

accent

#8D4DDB

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3B81BA

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

Preview Lab → · Contrast checker → · Palette generator →