#3976B0#3976B0

#3976B0 is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 55.2% C 0.111 H 249.5°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3976B0
RGB	rgb(57, 118, 176)
HSL	hsl(209, 51%, 46%)
HSV	hsv(209, 68%, 69%)
CMYK	cmyk(67.6%, 33%, 0%, 31%)
CIE-LAB	lab(48.21, -0.69, -36.59)
CIE-LCH	lch(48.21, 36.60, 268.92°)
OKLab	oklab(55.25% -0.0388 -0.1036)
OKLCH	oklch(55.25% 0.111 249.5)
XYZ	xyz(15.9993, 16.9597, 43.4962)
Luminance	0.1696 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976B0 #B07339

analogous

#39B0AE #3976B0 #393AB0

triadic

#3976B0 #B03976 #76B039

tetradic

#3976B0 #AE39B0 #B07339 #3AB039

square

#3976B0 #AE39B0 #B07339 #3AB039

split-complementary

#3976B0 #B0393A #B0AE39

monochromatic

#1B3854 #2A5782 #3976B0 #5C94CA #8AB3D9

Accessibility & contrast

On white

4.78

#3976B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#3976B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3976B0

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976B0	#FFFFFF	#000000	##FFFFFF
##3976B0	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C79B2

Deuteranopia (green-blind)

#4C6DAF

Tritanopia (blue-blind)

#00848B

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3976b0;
/* rgb */ color: rgb(57, 118, 176);
/* oklch */ color: oklch(55.2% 0.111 249.5);

Tailwind

colors: {
  custom: {
    50: '#7c9dc8',
    500: '#3976b0',
    950: '#000000',
  },
}

SCSS

$custom: #3976b0;
$custom-light: #7c9dc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3976b0",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 176
  },
  "hsl": {
    "h": 209.244,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.55246,
    "c": 0.11065,
    "h": 249.5
  },
  "luminance": 0.16961
}

Semantic roles & 50–950 ramp

primary

#3976B0

secondary

#C4A281

accent

#924DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3976B0

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

Preview Lab → · Contrast checker → · Palette generator →