#3F76B3#3F76B3

#3F76B3 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.7% C 0.112 H 252.6°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F76B3
RGB	rgb(63, 118, 179)
HSL	hsl(212, 48%, 47%)
HSV	hsv(212, 65%, 70%)
CMYK	cmyk(64.8%, 34.1%, 0%, 29.8%)
CIE-LAB	lab(48.59, 1.41, -37.71)
CIE-LCH	lch(48.59, 37.74, 272.14°)
OKLab	oklab(55.66% -0.0335 -0.1068)
OKLCH	oklch(55.66% 0.112 252.6)
XYZ	xyz(16.6620, 17.2667, 45.0938)
Luminance	0.1727 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F76B3 #B37C3F

analogous

#3FB0B3 #3F76B3 #423FB3

triadic

#3F76B3 #B33F76 #76B33F

tetradic

#3F76B3 #B33FB0 #B37C3F #3FB342

square

#3F76B3 #B33FB0 #B37C3F #3FB342

split-complementary

#3F76B3 #B3423F #B0B33F

monochromatic

#1F3A58 #2F5886 #3F76B3 #6695C9 #93B4D9

Accessibility & contrast

On white

4.72

#3F76B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#3F76B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F76B3

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F76B3	#FFFFFF	#000000	##FFFFFF
##3F76B3	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C79B6

Deuteranopia (green-blind)

#4C6EB2

Tritanopia (blue-blind)

#00848C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3f76b3;
/* rgb */ color: rgb(63, 118, 179);
/* oklch */ color: oklch(55.7% 0.112 252.6);

Tailwind

colors: {
  custom: {
    50: '#7f9dca',
    500: '#3f76b3',
    950: '#000000',
  },
}

SCSS

$custom: #3f76b3;
$custom-light: #7f9dca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f76b3",
  "rgb": {
    "r": 63,
    "g": 118,
    "b": 179
  },
  "hsl": {
    "h": 211.552,
    "s": 47.934,
    "l": 47.451
  },
  "oklch": {
    "l": 0.55662,
    "c": 0.11193,
    "h": 252.6
  },
  "luminance": 0.17268
}

Semantic roles & 50–950 ramp

primary

#3F76B3

secondary

#C4A889

accent

#9750D8

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F76B3

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

Preview Lab → · Contrast checker → · Palette generator →