#3976D7#3976D7

#3976D7 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.6% C 0.162 H 259.4°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3976D7
RGB	rgb(57, 118, 215)
HSL	hsl(217, 66%, 53%)
HSV	hsv(217, 73%, 84%)
CMYK	cmyk(73.5%, 45.1%, 0%, 15.7%)
CIE-LAB	lab(50.37, 13.42, -55.52)
CIE-LCH	lch(50.37, 57.12, 283.58°)
OKLab	oklab(57.63% -0.0298 -0.1591)
OKLCH	oklch(57.63% 0.162 259.4)
XYZ	xyz(20.4271, 18.7308, 66.8156)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3976D7 #D79A39

analogous

#39C5D7 #3976D7 #4B39D7

triadic

#3976D7 #D73976 #76D739

tetradic

#3976D7 #D739C5 #D79A39 #39D74B

square

#3976D7 #D739C5 #D79A39 #39D74B

split-complementary

#3976D7 #D74B39 #C5D739

monochromatic

#193F7C #2359AF #3976D7 #6C99E1 #9FBCEC

Accessibility & contrast

On white

4.42

#3976D7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#3976D7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3976D7

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3976D7	#FFFFFF	#000000	##000000
##3976D7	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4480DB

Deuteranopia (green-blind)

#2271D5

Tritanopia (blue-blind)

#008D9C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3976d7;
/* rgb */ color: rgb(57, 118, 215);
/* oklch */ color: oklch(57.6% 0.162 259.4);

Tailwind

colors: {
  custom: {
    50: '#849ce4',
    500: '#3976d7',
    950: '#000000',
  },
}

SCSS

$custom: #3976d7;
$custom-light: #849ce4;
$custom-dark: #000000;

JSON

{
  "hex": "#3976d7",
  "rgb": {
    "r": 57,
    "g": 118,
    "b": 215
  },
  "hsl": {
    "h": 216.835,
    "s": 66.387,
    "l": 53.333
  },
  "oklch": {
    "l": 0.5763,
    "c": 0.16189,
    "h": 259.4
  },
  "luminance": 0.18733
}

Semantic roles & 50–950 ramp

primary

#3976D7

secondary

#D8BE94

accent

#A73EE9

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3976D7

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

Preview Lab → · Contrast checker → · Palette generator →