#3976B4#3976B4

#3976B4 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.5% C 0.116 H 251.0°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3976B4
RGB	rgb(57, 118, 180)
HSL	hsl(210, 52%, 46%)
HSV	hsv(210, 68%, 71%)
CMYK	cmyk(68.3%, 34.4%, 0%, 29.4%)
CIE-LAB	lab(48.41, 0.73, -38.59)
CIE-LCH	lch(48.41, 38.60, 271.08°)
OKLab	oklab(55.47% -0.0377 -0.1095)
OKLCH	oklch(55.47% 0.116 251)
XYZ	xyz(16.4009, 17.1203, 45.6114)
Luminance	0.1712 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976B4 #B47739

analogous

#39B4B4 #3976B4 #3A39B4

triadic

#3976B4 #B43976 #76B439

tetradic

#3976B4 #B439B4 #B47739 #39B43A

square

#3976B4 #B439B4 #B47739 #39B43A

split-complementary

#3976B4 #B43A39 #B4B439

monochromatic

#1C3957 #2A5886 #3976B4 #5E95CC #8DB3DB

Accessibility & contrast

On white

4.75

#3976B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3976B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3976B4

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976B4	#FFFFFF	#000000	##FFFFFF
##3976B4	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A79B7

Deuteranopia (green-blind)

#496EB3

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3976b4;
/* rgb */ color: rgb(57, 118, 180);
/* oklch */ color: oklch(55.5% 0.116 251.0);

Tailwind

colors: {
  custom: {
    50: '#7d9dcb',
    500: '#3976b4',
    950: '#000000',
  },
}

SCSS

$custom: #3976b4;
$custom-light: #7d9dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3976b4",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 180
  },
  "hsl": {
    "h": 210.244,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.55471,
    "c": 0.11576,
    "h": 251
  },
  "luminance": 0.17122
}

Semantic roles & 50–950 ramp

primary

#3976B4

secondary

#C5A583

accent

#944CDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3976B4

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

Preview Lab → · Contrast checker → · Palette generator →