#374E8D#374E8D

#374E8D is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.8% C 0.108 H 266.9°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#374E8D
RGB	rgb(55, 78, 141)
HSL	hsl(224, 44%, 38%)
HSV	hsv(224, 61%, 55%)
CMYK	cmyk(61%, 44.7%, 0%, 44.7%)
CIE-LAB	lab(34.36, 11.71, -37.71)
CIE-LCH	lch(34.36, 39.49, 287.25°)
OKLab	oklab(43.83% -0.0059 -0.1074)
OKLCH	oklch(43.83% 0.108 266.9)
XYZ	xyz(9.1060, 8.1833, 26.2938)
Luminance	0.0818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374E8D #8D7637

analogous

#37798D #374E8D #4B378D

triadic

#374E8D #8D374E #4E8D37

tetradic

#374E8D #8D3779 #8D7637 #378D4B

square

#374E8D #8D3779 #8D7637 #378D4B

split-complementary

#374E8D #8D4B37 #798D37

monochromatic

#151D35 #263661 #374E8D #4967B8 #758CC9

Accessibility & contrast

On white

7.96

#374E8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#374E8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374E8D

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374E8D	#FFFFFF	#000000	##FFFFFF
##374E8D	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32558F

Deuteranopia (green-blind)

#254D8C

Tritanopia (blue-blind)

#005C66

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #374e8d;
/* rgb */ color: rgb(55, 78, 141);
/* oklch */ color: oklch(43.8% 0.108 266.9);

Tailwind

colors: {
  custom: {
    50: '#767faf',
    500: '#374e8d',
    950: '#000000',
  },
}

SCSS

$custom: #374e8d;
$custom-light: #767faf;
$custom-dark: #000000;

JSON

{
  "hex": "#374e8d",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 141
  },
  "hsl": {
    "h": 223.953,
    "s": 43.878,
    "l": 38.431
  },
  "oklch": {
    "l": 0.43826,
    "c": 0.1076,
    "h": 266.9
  },
  "luminance": 0.08184
}

Semantic roles & 50–950 ramp

primary

#374E8D

secondary

#B2A06E

accent

#B254D4

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #374E8D

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

Preview Lab → · Contrast checker → · Palette generator →