#3F76C6#3F76C6

#3F76C6 is a mid, vivid blue. Relative luminance 0.181; OKLCH L 56.8% C 0.137 H 257.9°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F76C6
RGB	rgb(63, 118, 198)
HSL	hsl(216, 54%, 51%)
HSV	hsv(216, 68%, 78%)
CMYK	cmyk(68.2%, 40.4%, 0%, 22.4%)
CIE-LAB	lab(49.60, 8.12, -47.05)
CIE-LCH	lch(49.60, 47.75, 279.80°)
OKLab	oklab(56.78% -0.0288 -0.1341)
OKLCH	oklch(56.78% 0.137 257.9)
XYZ	xyz(18.7177, 18.0889, 55.9202)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76C6 #C68F3F

analogous

#3FB9C6 #3F76C6 #4B3FC6

triadic

#3F76C6 #C63F76 #76C63F

tetradic

#3F76C6 #C63FB9 #C68F3F #3FC64B

square

#3F76C6 #C63FB9 #C68F3F #3FC64B

split-complementary

#3F76C6 #C64B3F #B9C63F

monochromatic

#203E6B #2E5A9A #3F76C6 #6E98D4 #9DB9E2

Accessibility & contrast

On white

4.55

#3F76C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#3F76C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F76C6

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76C6	#FFFFFF	#000000	##000000
##3F76C6	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517DC9

Deuteranopia (green-blind)

#3C70C4

Tritanopia (blue-blind)

#008894

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f76c6;
/* rgb */ color: rgb(63, 118, 198);
/* oklch */ color: oklch(56.8% 0.137 257.9);

Tailwind

colors: {
  custom: {
    50: '#839dd8',
    500: '#3f76c6',
    950: '#000000',
  },
}

SCSS

$custom: #3f76c6;
$custom-light: #839dd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76c6",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 198
  },
  "hsl": {
    "h": 215.556,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56778,
    "c": 0.1372,
    "h": 257.9
  },
  "luminance": 0.18091
}

Semantic roles & 50–950 ramp

primary

#3F76C6

secondary

#CEB693

accent

#A24ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #3F76C6

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

Preview Lab → · Contrast checker → · Palette generator →