#374E72#374E72

#374E72 is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.2% C 0.067 H 259.1°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#374E72
RGB	rgb(55, 78, 114)
HSL	hsl(217, 35%, 33%)
HSV	hsv(217, 52%, 45%)
CMYK	cmyk(51.8%, 31.6%, 0%, 55.3%)
CIE-LAB	lab(32.87, 2.26, -23.39)
CIE-LCH	lch(32.87, 23.49, 275.52°)
OKLab	oklab(42.18% -0.0126 -0.0656)
OKLCH	oklch(42.18% 0.067 259.1)
XYZ	xyz(7.3362, 7.4754, 16.9726)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374E72 #725B37

analogous

#376B72 #374E72 #3D3772

triadic

#374E72 #72374E #4E7237

tetradic

#374E72 #72376B #725B37 #37723D

square

#374E72 #72376B #725B37 #37723D

split-complementary

#374E72 #723D37 #6B7237

monochromatic

#0F161F #233249 #374E72 #4B6A9B #6C89B8

Accessibility & contrast

On white

8.42

#374E72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#374E72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374E72

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374E72	#FFFFFF	#000000	##FFFFFF
##374E72	1.00	8.42	2.50	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405074

Deuteranopia (green-blind)

#394B71

Tritanopia (blue-blind)

#1D565B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #374e72;
/* rgb */ color: rgb(55, 78, 114);
/* oklch */ color: oklch(42.2% 0.067 259.1);

Tailwind

colors: {
  custom: {
    50: '#727f9a',
    500: '#374e72',
    950: '#000000',
  },
}

SCSS

$custom: #374e72;
$custom-light: #727f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#374e72",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 114
  },
  "hsl": {
    "h": 216.61,
    "s": 34.911,
    "l": 33.137
  },
  "oklch": {
    "l": 0.42179,
    "c": 0.06683,
    "h": 259.1
  },
  "luminance": 0.07476
}

Semantic roles & 50–950 ramp

primary

#374E72

secondary

#A18964

accent

#A05DCB

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#080A0E

muted

#7B7C7E

Preview Lab

Preview with #374E72

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

Preview Lab → · Contrast checker → · Palette generator →