#3F76C8#3F76C8

#3F76C8 is a mid, vivid blue. Relative luminance 0.182; OKLCH L 56.9% C 0.140 H 258.3°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F76C8
RGB	rgb(63, 118, 200)
HSL	hsl(216, 55%, 52%)
HSV	hsv(216, 69%, 78%)
CMYK	cmyk(68.5%, 41%, 0%, 21.6%)
CIE-LAB	lab(49.72, 8.84, -48.02)
CIE-LCH	lch(49.72, 48.83, 280.43°)
OKLab	oklab(56.9% -0.0284 -0.137)
OKLCH	oklch(56.9% 0.14 258.3)
XYZ	xyz(18.9499, 18.1818, 57.1431)
Luminance	0.1818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76C8 #C8913F

analogous

#3FBBC8 #3F76C8 #4D3FC8

triadic

#3F76C8 #C83F76 #76C83F

tetradic

#3F76C8 #C83FBB #C8913F #3FC84D

square

#3F76C8 #C83FBB #C8913F #3FC84D

split-complementary

#3F76C8 #C84D3F #BBC83F

monochromatic

#1F3F6D #2D5A9D #3F76C8 #6F98D6 #9EBAE3

Accessibility & contrast

On white

4.53

#3F76C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#3F76C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F76C8

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76C8	#FFFFFF	#000000	##000000
##3F76C8	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#507DCB

Deuteranopia (green-blind)

#3A70C6

Tritanopia (blue-blind)

#008995

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f76c8;
/* rgb */ color: rgb(63, 118, 200);
/* oklch */ color: oklch(56.9% 0.140 258.3);

Tailwind

colors: {
  custom: {
    50: '#839dd9',
    500: '#3f76c8',
    950: '#000000',
  },
}

SCSS

$custom: #3f76c8;
$custom-light: #839dd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76c8",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 200
  },
  "hsl": {
    "h": 215.912,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56902,
    "c": 0.13989,
    "h": 258.3
  },
  "luminance": 0.18184
}

Semantic roles & 50–950 ramp

primary

#3F76C8

secondary

#D0B793

accent

#A349DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F76C8

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

Preview Lab → · Contrast checker → · Palette generator →