#3877CC#3877CC

#3877CC is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 57.1% C 0.147 H 256.8°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3877CC
RGB	rgb(56, 119, 204)
HSL	hsl(214, 59%, 51%)
HSV	hsv(214, 73%, 80%)
CMYK	cmyk(72.5%, 41.7%, 0%, 20%)
CIE-LAB	lab(49.97, 8.64, -49.92)
CIE-LCH	lch(49.97, 50.66, 279.82°)
OKLab	oklab(57.1% -0.0335 -0.1426)
OKLCH	oklch(57.1% 0.147 256.8)
XYZ	xyz(19.1228, 18.3919, 59.6572)
Luminance	0.1839 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877CC #CC8D38

analogous

#38C1CC #3877CC #4338CC

triadic

#3877CC #CC3877 #77CC38

tetradic

#3877CC #CC38C1 #CC8D38 #38CC43

square

#3877CC #CC38C1 #CC8D38 #38CC43

split-complementary

#3877CC #CC4338 #C1CC38

monochromatic

#1C3F6E #295B9E #3877CC #6998D8 #99BAE5

Accessibility & contrast

On white

4.49

#3877CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#3877CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3877CC

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877CC	#FFFFFF	#000000	##000000
##3877CC	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7ECF

Deuteranopia (green-blind)

#3571CA

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3877cc;
/* rgb */ color: rgb(56, 119, 204);
/* oklch */ color: oklch(57.1% 0.147 256.8);

Tailwind

colors: {
  custom: {
    50: '#819ddc',
    500: '#3877cc',
    950: '#000000',
  },
}

SCSS

$custom: #3877cc;
$custom-light: #819ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#3877cc",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 204
  },
  "hsl": {
    "h": 214.459,
    "s": 59.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57099,
    "c": 0.14652,
    "h": 256.8
  },
  "luminance": 0.18394
}

Semantic roles & 50–950 ramp

primary

#3877CC

secondary

#D1B58F

accent

#A045E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3877CC

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

Preview Lab → · Contrast checker → · Palette generator →