#3F76C4#3F76C4

#3F76C4 is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.7% C 0.135 H 257.4°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3F76C4
RGB	rgb(63, 118, 196)
HSL	hsl(215, 53%, 51%)
HSV	hsv(215, 68%, 77%)
CMYK	cmyk(67.9%, 39.8%, 0%, 23.1%)
CIE-LAB	lab(49.49, 7.41, -46.09)
CIE-LCH	lch(49.49, 46.68, 279.13°)
OKLab	oklab(56.66% -0.0293 -0.1313)
OKLCH	oklch(56.66% 0.135 257.4)
XYZ	xyz(18.4885, 17.9973, 54.7133)
Luminance	0.1800 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76C4 #C48D3F

analogous

#3FB8C4 #3F76C4 #4A3FC4

triadic

#3F76C4 #C43F76 #76C43F

tetradic

#3F76C4 #C43FB8 #C48D3F #3FC44A

square

#3F76C4 #C43FB8 #C48D3F #3FC44A

split-complementary

#3F76C4 #C44A3F #B8C43F

monochromatic

#203E68 #2E5A97 #3F76C4 #6E97D2 #9DB9E1

Accessibility & contrast

On white

4.57

#3F76C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3F76C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F76C4

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76C4	#FFFFFF	#000000	##000000
##3F76C4	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#527CC7

Deuteranopia (green-blind)

#3E70C2

Tritanopia (blue-blind)

#008893

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f76c4;
/* rgb */ color: rgb(63, 118, 196);
/* oklch */ color: oklch(56.7% 0.135 257.4);

Tailwind

colors: {
  custom: {
    50: '#829dd6',
    500: '#3f76c4',
    950: '#000000',
  },
}

SCSS

$custom: #3f76c4;
$custom-light: #829dd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76c4",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 196
  },
  "hsl": {
    "h": 215.188,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56656,
    "c": 0.13452,
    "h": 257.4
  },
  "luminance": 0.17999
}

Semantic roles & 50–950 ramp

primary

#3F76C4

secondary

#CDB592

accent

#A04BDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #3F76C4

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

Preview Lab → · Contrast checker → · Palette generator →