#334F81#334F81

#334F81 is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.1% C 0.090 H 261.3°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#334F81
RGB	rgb(51, 79, 129)
HSL	hsl(218, 43%, 35%)
HSV	hsv(218, 60%, 51%)
CMYK	cmyk(60.5%, 38.8%, 0%, 49.4%)
CIE-LAB	lab(33.73, 5.87, -31.36)
CIE-LCH	lch(33.73, 31.91, 280.61°)
OKLab	oklab(43.05% -0.0137 -0.0889)
OKLCH	oklch(43.05% 0.09 261.3)
XYZ	xyz(8.1223, 7.8801, 21.8576)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334F81 #816533

analogous

#337681 #334F81 #3E3381

triadic

#334F81 #81334F #4F8133

tetradic

#334F81 #813376 #816533 #33813E

square

#334F81 #813376 #816533 #33813E

split-complementary

#334F81 #813E33 #768133

monochromatic

#101929 #223455 #334F81 #446AAD #6A8BC4

Accessibility & contrast

On white

8.15

#334F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#334F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334F81

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334F81	#FFFFFF	#000000	##FFFFFF
##334F81	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A5383

Deuteranopia (green-blind)

#304C80

Tritanopia (blue-blind)

#005A62

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #334f81;
/* rgb */ color: rgb(51, 79, 129);
/* oklch */ color: oklch(43.1% 0.090 261.3);

Tailwind

colors: {
  custom: {
    50: '#7280a6',
    500: '#334f81',
    950: '#000000',
  },
}

SCSS

$custom: #334f81;
$custom-light: #7280a6;
$custom-dark: #000000;

JSON

{
  "hex": "#334f81",
  "rgb": {
    "r": 51,
    "g": 79,
    "b": 129
  },
  "hsl": {
    "h": 218.462,
    "s": 43.333,
    "l": 35.294
  },
  "oklch": {
    "l": 0.43051,
    "c": 0.08994,
    "h": 261.3
  },
  "luminance": 0.07881
}

Semantic roles & 50–950 ramp

primary

#334F81

secondary

#AC9264

accent

#A655D3

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A0F

muted

#7B7C7F

Preview Lab

Preview with #334F81

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

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