#374E73#374E73

#374E73 is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.2% C 0.068 H 259.6°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#374E73
RGB	rgb(55, 78, 115)
HSL	hsl(217, 35%, 33%)
HSV	hsv(217, 52%, 45%)
CMYK	cmyk(52.2%, 32.2%, 0%, 54.9%)
CIE-LAB	lab(32.92, 2.60, -23.93)
CIE-LCH	lch(32.92, 24.07, 276.19°)
OKLab	oklab(42.23% -0.0123 -0.0672)
OKLCH	oklch(42.23% 0.068 259.6)
XYZ	xyz(7.3934, 7.4983, 17.2741)
Luminance	0.0750 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374E73 #735C37

analogous

#376C73 #374E73 #3E3773

triadic

#374E73 #73374E #4E7337

tetradic

#374E73 #73376C #735C37 #37733E

square

#374E73 #73376C #735C37 #37733E

split-complementary

#374E73 #733E37 #6C7337

monochromatic

#0F1620 #23324A #374E73 #4B6A9C #6C89B9

Accessibility & contrast

On white

8.40

#374E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#374E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374E73

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374E73	#FFFFFF	#000000	##FFFFFF
##374E73	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405175

Deuteranopia (green-blind)

#394B72

Tritanopia (blue-blind)

#1C565B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #374e73;
/* rgb */ color: rgb(55, 78, 115);
/* oklch */ color: oklch(42.2% 0.068 259.6);

Tailwind

colors: {
  custom: {
    50: '#727f9b',
    500: '#374e73',
    950: '#000000',
  },
}

SCSS

$custom: #374e73;
$custom-light: #727f9b;
$custom-dark: #000000;

JSON

{
  "hex": "#374e73",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 115
  },
  "hsl": {
    "h": 217,
    "s": 35.294,
    "l": 33.333
  },
  "oklch": {
    "l": 0.42234,
    "c": 0.06833,
    "h": 259.6
  },
  "luminance": 0.07499
}

Semantic roles & 50–950 ramp

primary

#374E73

secondary

#A28A64

accent

#A15CCB

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#080A0E

muted

#7B7C7E

Preview Lab

Preview with #374E73

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

Preview Lab → · Contrast checker → · Palette generator →