#3976D1#3976D1

#3976D1 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.2% C 0.154 H 258.4°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3976D1
RGB	rgb(57, 118, 209)
HSL	hsl(216, 62%, 52%)
HSV	hsv(216, 73%, 82%)
CMYK	cmyk(72.7%, 43.5%, 0%, 18%)
CIE-LAB	lab(50.01, 11.22, -52.69)
CIE-LCH	lch(50.01, 53.88, 282.02°)
OKLab	oklab(57.24% -0.0309 -0.1508)
OKLCH	oklch(57.24% 0.154 258.4)
XYZ	xyz(19.6702, 18.4280, 62.8295)
Luminance	0.1843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976D1 #D19439

analogous

#39C2D1 #3976D1 #4839D1

triadic

#3976D1 #D13976 #76D139

tetradic

#3976D1 #D139C2 #D19439 #39D148

square

#3976D1 #D139C2 #D19439 #39D148

split-complementary

#3976D1 #D14839 #C2D139

monochromatic

#1B3F75 #275AA6 #3976D1 #6B98DD #9CBBE8

Accessibility & contrast

On white

4.48

#3976D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#3976D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3976D1

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976D1	#FFFFFF	#000000	##000000
##3976D1	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#497ED4

Deuteranopia (green-blind)

#2C70CF

Tritanopia (blue-blind)

#008B99

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3976d1;
/* rgb */ color: rgb(57, 118, 209);
/* oklch */ color: oklch(57.2% 0.154 258.4);

Tailwind

colors: {
  custom: {
    50: '#829ce0',
    500: '#3976d1',
    950: '#000000',
  },
}

SCSS

$custom: #3976d1;
$custom-light: #829ce0;
$custom-dark: #000000;

JSON

{
  "hex": "#3976d1",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 209
  },
  "hsl": {
    "h": 215.921,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.57236,
    "c": 0.15394,
    "h": 258.4
  },
  "luminance": 0.1843
}

Semantic roles & 50–950 ramp

primary

#3976D1

secondary

#D4B992

accent

#A442E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3976D1

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

Preview Lab → · Contrast checker → · Palette generator →