#3877BE#3877BE

#3877BE is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.2% C 0.128 H 253.3°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3877BE
RGB	rgb(56, 119, 190)
HSL	hsl(212, 54%, 48%)
HSV	hsv(212, 71%, 75%)
CMYK	cmyk(70.5%, 37.4%, 0%, 25.5%)
CIE-LAB	lab(49.19, 3.55, -43.13)
CIE-LCH	lch(49.19, 43.28, 274.70°)
OKLab	oklab(56.24% -0.0367 -0.1227)
OKLCH	oklch(56.24% 0.128 253.3)
XYZ	xyz(17.5185, 17.7502, 51.2081)
Luminance	0.1775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877BE #BE7F38

analogous

#38BABE #3877BE #3C38BE

triadic

#3877BE #BE3877 #77BE38

tetradic

#3877BE #BE38BA #BE7F38 #38BE3C

square

#3877BE #BE38BA #BE7F38 #38BE3C

split-complementary

#3877BE #BE3C38 #BABE38

monochromatic

#1C3C5F #2A598F #3877BE #6296D1 #92B6DF

Accessibility & contrast

On white

4.61

#3877BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#3877BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3877BE

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877BE	#FFFFFF	#000000	##FFFFFF
##3877BE	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577CC1

Deuteranopia (green-blind)

#436FBD

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3877be;
/* rgb */ color: rgb(56, 119, 190);
/* oklch */ color: oklch(56.2% 0.128 253.3);

Tailwind

colors: {
  custom: {
    50: '#7e9dd2',
    500: '#3877be',
    950: '#000000',
  },
}

SCSS

$custom: #3877be;
$custom-light: #7e9dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3877be",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 190
  },
  "hsl": {
    "h": 211.791,
    "s": 54.472,
    "l": 48.235
  },
  "oklch": {
    "l": 0.56242,
    "c": 0.12812,
    "h": 253.3
  },
  "luminance": 0.17752
}

Semantic roles & 50–950 ramp

primary

#3877BE

secondary

#CAAB88

accent

#984ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3877BE

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

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