#374F73#374F73

#374F73 is a dark, moderate blue. Relative luminance 0.076; OKLCH L 42.5% C 0.067 H 258.3°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#374F73
RGB	rgb(55, 79, 115)
HSL	hsl(216, 35%, 33%)
HSV	hsv(216, 52%, 45%)
CMYK	cmyk(52.2%, 31.3%, 0%, 54.9%)
CIE-LAB	lab(33.22, 1.95, -23.45)
CIE-LCH	lch(33.22, 23.53, 274.75°)
OKLab	oklab(42.48% -0.0136 -0.0658)
OKLCH	oklch(42.48% 0.067 258.3)
XYZ	xyz(7.4650, 7.6415, 17.2979)
Luminance	0.0764 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374F73 #735B37

analogous

#376D73 #374F73 #3D3773

triadic

#374F73 #73374F #4F7337

tetradic

#374F73 #73376D #735B37 #37733D

square

#374F73 #73376D #735B37 #37733D

split-complementary

#374F73 #733D37 #6D7337

monochromatic

#0F1620 #23334A #374F73 #4B6B9C #6C8BB9

Accessibility & contrast

On white

8.31

#374F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#374F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374F73

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374F73	#FFFFFF	#000000	##FFFFFF
##374F73	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415175

Deuteranopia (green-blind)

#3A4C72

Tritanopia (blue-blind)

#1C575C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #374f73;
/* rgb */ color: rgb(55, 79, 115);
/* oklch */ color: oklch(42.5% 0.067 258.3);

Tailwind

colors: {
  custom: {
    50: '#72809b',
    500: '#374f73',
    950: '#000000',
  },
}

SCSS

$custom: #374f73;
$custom-light: #72809b;
$custom-dark: #000000;

JSON

{
  "hex": "#374f73",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 115
  },
  "hsl": {
    "h": 216,
    "s": 35.294,
    "l": 33.333
  },
  "oklch": {
    "l": 0.42476,
    "c": 0.0672,
    "h": 258.3
  },
  "luminance": 0.07642
}

Semantic roles & 50–950 ramp

primary

#374F73

secondary

#A28964

accent

#9F5CCB

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#080A0E

muted

#7B7C7E

Preview Lab

Preview with #374F73

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

Preview Lab → · Contrast checker → · Palette generator →