#3976B3#3976B3

#3976B3 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.4% C 0.114 H 250.6°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3976B3
RGB	rgb(57, 118, 179)
HSL	hsl(210, 52%, 46%)
HSV	hsv(210, 68%, 70%)
CMYK	cmyk(68.2%, 34.1%, 0%, 29.8%)
CIE-LAB	lab(48.36, 0.37, -38.09)
CIE-LCH	lch(48.36, 38.10, 270.56°)
OKLab	oklab(55.41% -0.0379 -0.108)
OKLCH	oklch(55.41% 0.114 250.6)
XYZ	xyz(16.2994, 17.0797, 45.0768)
Luminance	0.1708 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976B3 #B37639

analogous

#39B3B3 #3976B3 #3939B3

triadic

#3976B3 #B33976 #76B339

tetradic

#3976B3 #B339B3 #B37639 #39B339

square

#3976B3 #B339B3 #B37639 #39B339

split-complementary

#3976B3 #B33939 #B3B339

monochromatic

#1B3956 #2A5785 #3976B3 #5E95CC #8CB3DA

Accessibility & contrast

On white

4.76

#3976B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3976B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3976B3

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976B3	#FFFFFF	#000000	##FFFFFF
##3976B3	1.00	4.76	4.42	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B79B6

Deuteranopia (green-blind)

#4A6EB2

Tritanopia (blue-blind)

#00848C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3976b3;
/* rgb */ color: rgb(57, 118, 179);
/* oklch */ color: oklch(55.4% 0.114 250.6);

Tailwind

colors: {
  custom: {
    50: '#7d9dca',
    500: '#3976b3',
    950: '#000000',
  },
}

SCSS

$custom: #3976b3;
$custom-light: #7d9dca;
$custom-dark: #000000;

JSON

{
  "hex": "#3976b3",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 179
  },
  "hsl": {
    "h": 210,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.55414,
    "c": 0.11447,
    "h": 250.6
  },
  "luminance": 0.17081
}

Semantic roles & 50–950 ramp

primary

#3976B3

secondary

#C5A483

accent

#944DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3976B3

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

Preview Lab → · Contrast checker → · Palette generator →