#3873BA#3873BA

#3873BA is a mid, vivid cyan. Relative luminance 0.166; OKLCH L 55.1% C 0.127 H 254.6°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#3873BA
RGB	rgb(56, 115, 186)
HSL	hsl(213, 54%, 47%)
HSV	hsv(213, 70%, 73%)
CMYK	cmyk(69.9%, 38.2%, 0%, 27.1%)
CIE-LAB	lab(47.81, 4.56, -43.02)
CIE-LCH	lch(47.81, 43.26, 276.05°)
OKLab	oklab(55.09% -0.0338 -0.1225)
OKLCH	oklch(55.09% 0.127 254.6)
XYZ	xyz(16.6213, 16.6456, 48.7818)
Luminance	0.1665 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3873BA #BA7F38

analogous

#38B4BA #3873BA #3E38BA

triadic

#3873BA #BA3873 #73BA38

tetradic

#3873BA #BA38B4 #BA7F38 #38BA3E

square

#3873BA #BA38B4 #BA7F38 #38BA3E

split-complementary

#3873BA #BA3E38 #B4BA38

monochromatic

#1C395C #2A568B #3873BA #6092CF #8FB3DD

Accessibility & contrast

On white

4.85

#3873BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#3873BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3873BA

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3873BA	#FFFFFF	#000000	##FFFFFF
##3873BA	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5378BD

Deuteranopia (green-blind)

#3F6CB9

Tritanopia (blue-blind)

#00848D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3873ba;
/* rgb */ color: rgb(56, 115, 186);
/* oklch */ color: oklch(55.1% 0.127 254.6);

Tailwind

colors: {
  custom: {
    50: '#7e9acf',
    500: '#3873ba',
    950: '#000000',
  },
}

SCSS

$custom: #3873ba;
$custom-light: #7e9acf;
$custom-dark: #000000;

JSON

{
  "hex": "#3873ba",
  "rgb": {
    "r": 56,
    "g": 115,
    "b": 186
  },
  "hsl": {
    "h": 212.769,
    "s": 53.719,
    "l": 47.451
  },
  "oklch": {
    "l": 0.55094,
    "c": 0.12705,
    "h": 254.6
  },
  "luminance": 0.16647
}

Semantic roles & 50–950 ramp

primary

#3873BA

secondary

#C8AA86

accent

#9B4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3873BA

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

Preview Lab → · Contrast checker → · Palette generator →