#374F74#374F74

#374F74 is a dark, moderate blue. Relative luminance 0.077; OKLCH L 42.5% C 0.069 H 258.8°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#374F74
RGB	rgb(55, 79, 116)
HSL	hsl(216, 36%, 34%)
HSV	hsv(216, 53%, 45%)
CMYK	cmyk(52.6%, 31.9%, 0%, 54.5%)
CIE-LAB	lab(33.27, 2.29, -24.00)
CIE-LCH	lch(33.27, 24.11, 275.45°)
OKLab	oklab(42.53% -0.0133 -0.0674)
OKLCH	oklch(42.53% 0.069 258.8)
XYZ	xyz(7.5229, 7.6646, 17.6026)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374F74 #745C37

analogous

#376D74 #374F74 #3D3774

triadic

#374F74 #74374F #4F7437

tetradic

#374F74 #74376D #745C37 #37743D

square

#374F74 #74376D #745C37 #37743D

split-complementary

#374F74 #743D37 #6D7437

monochromatic

#101621 #23334A #374F74 #4B6B9E #6C8AB9

Accessibility & contrast

On white

8.29

#374F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#374F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374F74

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374F74	#FFFFFF	#000000	##FFFFFF
##374F74	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415176

Deuteranopia (green-blind)

#394C73

Tritanopia (blue-blind)

#1B575C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #374f74;
/* rgb */ color: rgb(55, 79, 116);
/* oklch */ color: oklch(42.5% 0.069 258.8);

Tailwind

colors: {
  custom: {
    50: '#72809c',
    500: '#374f74',
    950: '#000000',
  },
}

SCSS

$custom: #374f74;
$custom-light: #72809c;
$custom-dark: #000000;

JSON

{
  "hex": "#374f74",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 116
  },
  "hsl": {
    "h": 216.393,
    "s": 35.673,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42531,
    "c": 0.06869,
    "h": 258.8
  },
  "luminance": 0.07665
}

Semantic roles & 50–950 ramp

primary

#374F74

secondary

#A28A65

accent

#A05CCC

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#080A0E

muted

#7B7C7E

Preview Lab

Preview with #374F74

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

Preview Lab → · Contrast checker → · Palette generator →