#3877B2#3877B2

#3877B2 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.6% C 0.113 H 249.2°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3877B2
RGB	rgb(56, 119, 178)
HSL	hsl(209, 52%, 46%)
HSV	hsv(209, 69%, 70%)
CMYK	cmyk(68.5%, 33.1%, 0%, 30.2%)
CIE-LAB	lab(48.57, -0.75, -37.19)
CIE-LCH	lch(48.57, 37.19, 268.84°)
OKLab	oklab(55.55% -0.0399 -0.1054)
OKLCH	oklch(55.55% 0.113 249.2)
XYZ	xyz(16.2606, 17.2471, 44.5829)
Luminance	0.1725 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877B2 #B27338

analogous

#38B2B0 #3877B2 #383AB2

triadic

#3877B2 #B23877 #77B238

tetradic

#3877B2 #B038B2 #B27338 #3AB238

square

#3877B2 #B038B2 #B27338 #3AB238

split-complementary

#3877B2 #B2383A #B2B038

monochromatic

#1B3955 #295883 #3877B2 #5C95CC #8AB4DA

Accessibility & contrast

On white

4.72

#3877B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#3877B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3877B2

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877B2	#FFFFFF	#000000	##FFFFFF
##3877B2	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7AB5

Deuteranopia (green-blind)

#4C6EB1

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3877b2;
/* rgb */ color: rgb(56, 119, 178);
/* oklch */ color: oklch(55.6% 0.113 249.2);

Tailwind

colors: {
  custom: {
    50: '#7c9dc9',
    500: '#3877b2',
    950: '#000000',
  },
}

SCSS

$custom: #3877b2;
$custom-light: #7c9dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3877b2",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 178
  },
  "hsl": {
    "h": 209.016,
    "s": 52.137,
    "l": 45.882
  },
  "oklch": {
    "l": 0.55552,
    "c": 0.11268,
    "h": 249.2
  },
  "luminance": 0.17249
}

Semantic roles & 50–950 ramp

primary

#3877B2

secondary

#C5A281

accent

#924CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3877B2

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

Preview Lab → · Contrast checker → · Palette generator →