#3877B7#3877B7

#3877B7 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.8% C 0.119 H 251.1°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3877B7
RGB	rgb(56, 119, 183)
HSL	hsl(210, 53%, 47%)
HSV	hsv(210, 69%, 72%)
CMYK	cmyk(69.4%, 35%, 0%, 28.2%)
CIE-LAB	lab(48.82, 1.03, -39.68)
CIE-LCH	lch(48.82, 39.69, 271.49°)
OKLab	oklab(55.83% -0.0385 -0.1126)
OKLCH	oklch(55.83% 0.119 251.1)
XYZ	xyz(16.7718, 17.4515, 47.2751)
Luminance	0.1745 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3877B7 #B77838

analogous

#38B7B7 #3877B7 #3838B7

triadic

#3877B7 #B73877 #77B738

tetradic

#3877B7 #B738B7 #B77838 #38B738

square

#3877B7 #B738B7 #B77838 #38B738

split-complementary

#3877B7 #B73838 #B7B738

monochromatic

#1B3A59 #2A5988 #3877B7 #5E96CE #8DB4DC

Accessibility & contrast

On white

4.68

#3877B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#3877B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3877B7

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3877B7	#FFFFFF	#000000	##FFFFFF
##3877B7	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7BBA

Deuteranopia (green-blind)

#486FB6

Tritanopia (blue-blind)

#00868E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3877b7;
/* rgb */ color: rgb(56, 119, 183);
/* oklch */ color: oklch(55.8% 0.119 251.1);

Tailwind

colors: {
  custom: {
    50: '#7d9dcd',
    500: '#3877b7',
    950: '#000000',
  },
}

SCSS

$custom: #3877b7;
$custom-light: #7d9dcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3877b7",
  "rgb": {
    "r": 56,
    "g": 119,
    "b": 183
  },
  "hsl": {
    "h": 210.236,
    "s": 53.138,
    "l": 46.863
  },
  "oklch": {
    "l": 0.55834,
    "c": 0.11904,
    "h": 251.1
  },
  "luminance": 0.17453
}

Semantic roles & 50–950 ramp

primary

#3877B7

secondary

#C7A684

accent

#944BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3877B7

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

Preview Lab → · Contrast checker → · Palette generator →