#374B8D#374B8D

#374B8D is a dark, moderate blue. Relative luminance 0.078; OKLCH L 43.2% C 0.112 H 268.7°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#374B8D
RGB	rgb(55, 75, 141)
HSL	hsl(226, 44%, 38%)
HSV	hsv(226, 61%, 55%)
CMYK	cmyk(61%, 46.8%, 0%, 44.7%)
CIE-LAB	lab(33.49, 13.70, -39.10)
CIE-LCH	lch(33.49, 41.44, 289.31°)
OKLab	oklab(43.16% -0.0025 -0.1115)
OKLCH	oklch(43.16% 0.112 268.7)
XYZ	xyz(8.8977, 7.7667, 26.2244)
Luminance	0.0777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374B8D #8D7937

analogous

#37768D #374B8D #4E378D

triadic

#374B8D #8D374B #4B8D37

tetradic

#374B8D #8D3776 #8D7937 #378D4E

square

#374B8D #8D3776 #8D7937 #378D4E

split-complementary

#374B8D #8D4E37 #768D37

monochromatic

#151C35 #263461 #374B8D #4963B8 #7589C9

Accessibility & contrast

On white

8.22

#374B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#374B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374B8D

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374B8D	#FFFFFF	#000000	##FFFFFF
##374B8D	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C538F

Deuteranopia (green-blind)

#1F4B8C

Tritanopia (blue-blind)

#005A65

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #374b8d;
/* rgb */ color: rgb(55, 75, 141);
/* oklch */ color: oklch(43.2% 0.112 268.7);

Tailwind

colors: {
  custom: {
    50: '#767caf',
    500: '#374b8d',
    950: '#000000',
  },
}

SCSS

$custom: #374b8d;
$custom-light: #767caf;
$custom-dark: #000000;

JSON

{
  "hex": "#374b8d",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 141
  },
  "hsl": {
    "h": 226.047,
    "s": 43.878,
    "l": 38.431
  },
  "oklch": {
    "l": 0.4316,
    "c": 0.11158,
    "h": 268.7
  },
  "luminance": 0.07767
}

Semantic roles & 50–950 ramp

primary

#374B8D

secondary

#B2A26E

accent

#B654D4

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #374B8D

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

Preview Lab → · Contrast checker → · Palette generator →