#3976B9#3976B9

#3976B9 is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.8% C 0.122 H 252.7°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3976B9
RGB	rgb(57, 118, 185)
HSL	hsl(211, 53%, 47%)
HSV	hsv(211, 69%, 73%)
CMYK	cmyk(69.2%, 36.2%, 0%, 27.5%)
CIE-LAB	lab(48.67, 2.52, -41.08)
CIE-LCH	lch(48.67, 41.15, 273.51°)
OKLab	oklab(55.76% -0.0363 -0.1167)
OKLCH	oklch(55.76% 0.122 252.7)
XYZ	xyz(16.9195, 17.3277, 48.3424)
Luminance	0.1733 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976B9 #B97C39

analogous

#39B6B9 #3976B9 #3C39B9

triadic

#3976B9 #B93976 #76B939

tetradic

#3976B9 #B939B6 #B97C39 #39B93C

square

#3976B9 #B939B6 #B97C39 #39B93C

split-complementary

#3976B9 #B93C39 #B6B939

monochromatic

#1C3A5B #2B588A #3976B9 #6195CE #90B4DD

Accessibility & contrast

On white

4.70

#3976B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3976B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3976B9

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976B9	#FFFFFF	#000000	##FFFFFF
##3976B9	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#587ABC

Deuteranopia (green-blind)

#456EB8

Tritanopia (blue-blind)

#00868F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3976b9;
/* rgb */ color: rgb(57, 118, 185);
/* oklch */ color: oklch(55.8% 0.122 252.7);

Tailwind

colors: {
  custom: {
    50: '#7e9dce',
    500: '#3976b9',
    950: '#000000',
  },
}

SCSS

$custom: #3976b9;
$custom-light: #7e9dce;
$custom-dark: #000000;

JSON

{
  "hex": "#3976b9",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 185
  },
  "hsl": {
    "h": 211.406,
    "s": 52.893,
    "l": 47.451
  },
  "oklch": {
    "l": 0.55758,
    "c": 0.12223,
    "h": 252.7
  },
  "luminance": 0.1733
}

Semantic roles & 50–950 ramp

primary

#3976B9

secondary

#C8A886

accent

#974BDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3976B9

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

Preview Lab → · Contrast checker → · Palette generator →