#3F76C5#3F76C5

#3F76C5 is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.7% C 0.136 H 257.7°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F76C5
RGB	rgb(63, 118, 197)
HSL	hsl(215, 54%, 51%)
HSV	hsv(215, 68%, 77%)
CMYK	cmyk(68%, 40.1%, 0%, 22.7%)
CIE-LAB	lab(49.55, 7.77, -46.57)
CIE-LCH	lch(49.55, 47.21, 279.47°)
OKLab	oklab(56.72% -0.029 -0.1327)
OKLCH	oklch(56.72% 0.136 257.7)
XYZ	xyz(18.6027, 18.0429, 55.3148)
Luminance	0.1804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76C5 #C58E3F

analogous

#3FB9C5 #3F76C5 #4B3FC5

triadic

#3F76C5 #C53F76 #76C53F

tetradic

#3F76C5 #C53FB9 #C58E3F #3FC54B

square

#3F76C5 #C53FB9 #C58E3F #3FC54B

split-complementary

#3F76C5 #C54B3F #B9C53F

monochromatic

#203E6A #2E5A99 #3F76C5 #6E98D3 #9DB9E1

Accessibility & contrast

On white

4.56

#3F76C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#3F76C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F76C5

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76C5	#FFFFFF	#000000	##000000
##3F76C5	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#527DC8

Deuteranopia (green-blind)

#3D70C3

Tritanopia (blue-blind)

#008894

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f76c5;
/* rgb */ color: rgb(63, 118, 197);
/* oklch */ color: oklch(56.7% 0.136 257.7);

Tailwind

colors: {
  custom: {
    50: '#829dd7',
    500: '#3f76c5',
    950: '#000000',
  },
}

SCSS

$custom: #3f76c5;
$custom-light: #829dd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76c5",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 197
  },
  "hsl": {
    "h": 215.373,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.56717,
    "c": 0.13586,
    "h": 257.7
  },
  "luminance": 0.18045
}

Semantic roles & 50–950 ramp

primary

#3F76C5

secondary

#CEB592

accent

#A14BDD

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #3F76C5

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

Preview Lab → · Contrast checker → · Palette generator →