#334C81#334C81

#334C81 is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.3% C 0.094 H 263.8°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#334C81
RGB	rgb(51, 76, 129)
HSL	hsl(221, 43%, 35%)
HSV	hsv(221, 60%, 51%)
CMYK	cmyk(60.5%, 41.1%, 0%, 49.4%)
CIE-LAB	lab(32.83, 7.85, -32.80)
CIE-LCH	lch(32.83, 33.72, 283.46°)
OKLab	oklab(42.35% -0.0101 -0.0931)
OKLCH	oklch(42.35% 0.094 263.8)
XYZ	xyz(7.9108, 7.4570, 21.7871)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334C81 #816833

analogous

#337381 #334C81 #413381

triadic

#334C81 #81334C #4C8133

tetradic

#334C81 #813373 #816833 #338141

square

#334C81 #813373 #816833 #338141

split-complementary

#334C81 #814133 #738133

monochromatic

#101829 #223255 #334C81 #4466AD #6A87C4

Accessibility & contrast

On white

8.43

#334C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#334C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334C81

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334C81	#FFFFFF	#000000	##FFFFFF
##334C81	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355183

Deuteranopia (green-blind)

#2B4A80

Tritanopia (blue-blind)

#005860

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #334c81;
/* rgb */ color: rgb(51, 76, 129);
/* oklch */ color: oklch(42.3% 0.094 263.8);

Tailwind

colors: {
  custom: {
    50: '#727da6',
    500: '#334c81',
    950: '#000000',
  },
}

SCSS

$custom: #334c81;
$custom-light: #727da6;
$custom-dark: #000000;

JSON

{
  "hex": "#334c81",
  "rgb": {
    "r": 51,
    "g": 76,
    "b": 129
  },
  "hsl": {
    "h": 220.769,
    "s": 43.333,
    "l": 35.294
  },
  "oklch": {
    "l": 0.42349,
    "c": 0.09368,
    "h": 263.8
  },
  "luminance": 0.07458
}

Semantic roles & 50–950 ramp

primary

#334C81

secondary

#AC9564

accent

#AB55D3

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #334C81

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

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