#374F72#374F72

#374F72 is a dark, moderate blue. Relative luminance 0.076; OKLCH L 42.4% C 0.066 H 257.7°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#374F72
RGB	rgb(55, 79, 114)
HSL	hsl(216, 35%, 33%)
HSV	hsv(216, 52%, 45%)
CMYK	cmyk(51.8%, 30.7%, 0%, 55.3%)
CIE-LAB	lab(33.18, 1.61, -22.90)
CIE-LCH	lch(33.18, 22.96, 274.03°)
OKLab	oklab(42.42% -0.014 -0.0642)
OKLCH	oklch(42.42% 0.066 257.7)
XYZ	xyz(7.4078, 7.6186, 16.9965)
Luminance	0.0762 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374F72 #725A37

analogous

#376C72 #374F72 #3C3772

triadic

#374F72 #72374F #4F7237

tetradic

#374F72 #72376C #725A37 #37723C

square

#374F72 #72376C #725A37 #37723C

split-complementary

#374F72 #723C37 #6C7237

monochromatic

#0F161F #233249 #374F72 #4B6C9B #6C8BB8

Accessibility & contrast

On white

8.32

#374F72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#374F72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374F72

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374F72	#FFFFFF	#000000	##FFFFFF
##374F72	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415174

Deuteranopia (green-blind)

#3A4B71

Tritanopia (blue-blind)

#1C575B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #374f72;
/* rgb */ color: rgb(55, 79, 114);
/* oklch */ color: oklch(42.4% 0.066 257.7);

Tailwind

colors: {
  custom: {
    50: '#72809a',
    500: '#374f72',
    950: '#000000',
  },
}

SCSS

$custom: #374f72;
$custom-light: #72809a;
$custom-dark: #000000;

JSON

{
  "hex": "#374f72",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 114
  },
  "hsl": {
    "h": 215.593,
    "s": 34.911,
    "l": 33.137
  },
  "oklch": {
    "l": 0.42421,
    "c": 0.06572,
    "h": 257.7
  },
  "luminance": 0.07619
}

Semantic roles & 50–950 ramp

primary

#374F72

secondary

#A18864

accent

#9E5DCB

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#080A0E

muted

#7B7C7E

Preview Lab

Preview with #374F72

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

Preview Lab → · Contrast checker → · Palette generator →