#3976D0#3976D0

#3976D0 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.2% C 0.153 H 258.2°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3976D0
RGB	rgb(57, 118, 208)
HSL	hsl(216, 62%, 52%)
HSV	hsv(216, 73%, 82%)
CMYK	cmyk(72.6%, 43.3%, 0%, 18.4%)
CIE-LAB	lab(49.95, 10.86, -52.22)
CIE-LCH	lch(49.95, 53.34, 281.74°)
OKLab	oklab(57.17% -0.0311 -0.1494)
OKLCH	oklch(57.17% 0.153 258.2)
XYZ	xyz(19.5468, 18.3786, 62.1795)
Luminance	0.1838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976D0 #D09339

analogous

#39C1D0 #3976D0 #4839D0

triadic

#3976D0 #D03976 #76D039

tetradic

#3976D0 #D039C1 #D09339 #39D048

square

#3976D0 #D039C1 #D09339 #39D048

split-complementary

#3976D0 #D04839 #C1D039

monochromatic

#1B3F73 #275AA5 #3976D0 #6A98DC #9CBAE7

Accessibility & contrast

On white

4.49

#3976D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#3976D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3976D0

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976D0	#FFFFFF	#000000	##000000
##3976D0	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7ED3

Deuteranopia (green-blind)

#2E70CE

Tritanopia (blue-blind)

#008B99

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3976d0;
/* rgb */ color: rgb(57, 118, 208);
/* oklch */ color: oklch(57.2% 0.153 258.2);

Tailwind

colors: {
  custom: {
    50: '#829cdf',
    500: '#3976d0',
    950: '#000000',
  },
}

SCSS

$custom: #3976d0;
$custom-light: #829cdf;
$custom-dark: #000000;

JSON

{
  "hex": "#3976d0",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 208
  },
  "hsl": {
    "h": 215.762,
    "s": 61.633,
    "l": 51.961
  },
  "oklch": {
    "l": 0.57172,
    "c": 0.15261,
    "h": 258.2
  },
  "luminance": 0.18381
}

Semantic roles & 50–950 ramp

primary

#3976D0

secondary

#D3B991

accent

#A343E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3976D0

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

Preview Lab → · Contrast checker → · Palette generator →