#3976CB#3976CB

#3976CB is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.9% C 0.146 H 257.3°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3976CB
RGB	rgb(57, 118, 203)
HSL	hsl(215, 58%, 51%)
HSV	hsv(215, 72%, 80%)
CMYK	cmyk(71.9%, 41.9%, 0%, 20.4%)
CIE-LAB	lab(49.66, 9.03, -49.83)
CIE-LCH	lch(49.66, 50.65, 280.27°)
OKLab	oklab(56.85% -0.0321 -0.1424)
OKLCH	oklch(56.85% 0.146 257.3)
XYZ	xyz(18.9413, 18.1365, 58.9908)
Luminance	0.1814 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976CB #CB8E39

analogous

#39BFCB #3976CB #4539CB

triadic

#3976CB #CB3976 #76CB39

tetradic

#3976CB #CB39BF #CB8E39 #39CB45

square

#3976CB #CB39BF #CB8E39 #39CB45

split-complementary

#3976CB #CB4539 #BFCB39

monochromatic

#1D3E6D #295A9D #3976CB #6998D8 #9AB9E4

Accessibility & contrast

On white

4.54

#3976CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#3976CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3976CB

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976CB	#FFFFFF	#000000	##000000
##3976CB	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D7DCE

Deuteranopia (green-blind)

#3470C9

Tritanopia (blue-blind)

#008A96

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3976cb;
/* rgb */ color: rgb(57, 118, 203);
/* oklch */ color: oklch(56.9% 0.146 257.3);

Tailwind

colors: {
  custom: {
    50: '#819ddb',
    500: '#3976cb',
    950: '#000000',
  },
}

SCSS

$custom: #3976cb;
$custom-light: #819ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#3976cb",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 203
  },
  "hsl": {
    "h": 214.932,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.56852,
    "c": 0.14598,
    "h": 257.3
  },
  "luminance": 0.18139
}

Semantic roles & 50–950 ramp

primary

#3976CB

secondary

#D0B590

accent

#A146E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3976CB

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

Preview Lab → · Contrast checker → · Palette generator →