#3877B5#3877B5

#3877B5 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.7% C 0.116 H 250.4°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3877B5
RGB	rgb(56, 119, 181)
HSL	hsl(210, 53%, 46%)
HSV	hsv(210, 69%, 71%)
CMYK	cmyk(69.1%, 34.3%, 0%, 29%)
CIE-LAB	lab(48.72, 0.32, -38.68)
CIE-LCH	lch(48.72, 38.69, 270.47°)
OKLab	oklab(55.72% -0.0391 -0.1097)
OKLCH	oklch(55.72% 0.116 250.4)
XYZ	xyz(16.5651, 17.3689, 46.1866)
Luminance	0.1737 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877B5 #B57638

analogous

#38B5B5 #3877B5 #3839B5

triadic

#3877B5 #B53877 #77B538

tetradic

#3877B5 #B538B5 #B57638 #39B538

square

#3877B5 #B538B5 #B57638 #39B538

split-complementary

#3877B5 #B53839 #B5B538

monochromatic

#1B3A58 #2A5886 #3877B5 #5D96CD #8CB4DB

Accessibility & contrast

On white

4.69

#3877B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3877B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3877B5

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877B5	#FFFFFF	#000000	##FFFFFF
##3877B5	1.00	4.69	4.47	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7AB8

Deuteranopia (green-blind)

#4A6EB4

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3877b5;
/* rgb */ color: rgb(56, 119, 181);
/* oklch */ color: oklch(55.7% 0.116 250.4);

Tailwind

colors: {
  custom: {
    50: '#7d9dcb',
    500: '#3877b5',
    950: '#000000',
  },
}

SCSS

$custom: #3877b5;
$custom-light: #7d9dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3877b5",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 181
  },
  "hsl": {
    "h": 209.76,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.5572,
    "c": 0.11649,
    "h": 250.4
  },
  "luminance": 0.17371
}

Semantic roles & 50–950 ramp

primary

#3877B5

secondary

#C6A483

accent

#934CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3877B5

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

Preview Lab → · Contrast checker → · Palette generator →