#3873B6#3873B6

#3873B6 is a mid, vivid cyan. Relative luminance 0.165; OKLCH L 54.9% C 0.122 H 253.4°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#3873B6
RGB	rgb(56, 115, 182)
HSL	hsl(212, 53%, 47%)
HSV	hsv(212, 69%, 71%)
CMYK	cmyk(69.2%, 36.8%, 0%, 28.6%)
CIE-LAB	lab(47.60, 3.12, -41.04)
CIE-LCH	lch(47.60, 41.16, 274.34°)
OKLab	oklab(54.86% -0.0348 -0.1167)
OKLCH	oklch(54.86% 0.122 253.4)
XYZ	xyz(16.2020, 16.4779, 46.5736)
Luminance	0.1648 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3873B6 #B67B38

analogous

#38B2B6 #3873B6 #3C38B6

triadic

#3873B6 #B63873 #73B638

tetradic

#3873B6 #B638B2 #B67B38 #38B63C

square

#3873B6 #B638B2 #B67B38 #38B63C

split-complementary

#3873B6 #B63C38 #B2B638

monochromatic

#1B3858 #2A5587 #3873B6 #5E92CD #8DB2DC

Accessibility & contrast

On white

4.89

#3873B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#3873B6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3873B6

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3873B6	#FFFFFF	#000000	##FFFFFF
##3873B6	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5577B9

Deuteranopia (green-blind)

#436CB5

Tritanopia (blue-blind)

#00838C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3873b6;
/* rgb */ color: rgb(56, 115, 182);
/* oklch */ color: oklch(54.9% 0.122 253.4);

Tailwind

colors: {
  custom: {
    50: '#7d9acc',
    500: '#3873b6',
    950: '#000000',
  },
}

SCSS

$custom: #3873b6;
$custom-light: #7d9acc;
$custom-dark: #000000;

JSON

{
  "hex": "#3873b6",
  "rgb": {
    "r": 56,
    "g": 115,
    "b": 182
  },
  "hsl": {
    "h": 211.905,
    "s": 52.941,
    "l": 46.667
  },
  "oklch": {
    "l": 0.54856,
    "c": 0.12177,
    "h": 253.4
  },
  "luminance": 0.1648
}

Semantic roles & 50–950 ramp

primary

#3873B6

secondary

#C6A784

accent

#994BDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3873B6

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

Preview Lab → · Contrast checker → · Palette generator →