#3872CB#3872CB

#3872CB is a mid, vivid blue. Relative luminance 0.172; OKLCH L 55.9% C 0.151 H 258.8°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3872CB
RGB	rgb(56, 114, 203)
HSL	hsl(216, 59%, 51%)
HSV	hsv(216, 72%, 80%)
CMYK	cmyk(72.4%, 43.8%, 0%, 20.4%)
CIE-LAB	lab(48.49, 11.38, -51.71)
CIE-LCH	lch(48.49, 52.94, 282.42°)
OKLab	oklab(55.94% -0.0292 -0.148)
OKLCH	oklch(55.94% 0.151 258.8)
XYZ	xyz(18.4238, 17.1852, 58.8344)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3872CB #CB9138

analogous

#38BBCB #3872CB #4738CB

triadic

#3872CB #CB3872 #72CB38

tetradic

#3872CB #CB38BB #CB9138 #38CB47

square

#3872CB #CB38BB #CB9138 #38CB47

split-complementary

#3872CB #CB4738 #BBCB38

monochromatic

#1C3C6C #29579D #3872CB #6994D8 #99B7E4

Accessibility & contrast

On white

4.73

#3872CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3872CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3872CB

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3872CB	#FFFFFF	#000000	##FFFFFF
##3872CB	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467ACE

Deuteranopia (green-blind)

#2A6DC9

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3872cb;
/* rgb */ color: rgb(56, 114, 203);
/* oklch */ color: oklch(55.9% 0.151 258.8);

Tailwind

colors: {
  custom: {
    50: '#819adb',
    500: '#3872cb',
    950: '#000000',
  },
}

SCSS

$custom: #3872cb;
$custom-light: #819adb;
$custom-dark: #000000;

JSON

{
  "hex": "#3872cb",
  "rgb": {
    "r": 56,
    "g": 114,
    "b": 203
  },
  "hsl": {
    "h": 216.327,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.55937,
    "c": 0.15083,
    "h": 258.8
  },
  "luminance": 0.17187
}

Semantic roles & 50–950 ramp

primary

#3872CB

secondary

#D0B68F

accent

#A446E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3872CB

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

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