#374E89#374E89

#374E89 is a dark, moderate blue. Relative luminance 0.081; OKLCH L 43.6% C 0.102 H 266.2°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#374E89
RGB	rgb(55, 78, 137)
HSL	hsl(223, 43%, 38%)
HSV	hsv(223, 60%, 54%)
CMYK	cmyk(59.9%, 43.1%, 0%, 46.3%)
CIE-LAB	lab(34.12, 10.28, -35.65)
CIE-LCH	lch(34.12, 37.10, 286.08°)
OKLab	oklab(43.56% -0.0067 -0.1014)
OKLCH	oklch(43.56% 0.102 266.2)
XYZ	xyz(8.8138, 8.0664, 24.7546)
Luminance	0.0807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374E89 #897237

analogous

#377789 #374E89 #493789

triadic

#374E89 #89374E #4E8937

tetradic

#374E89 #893777 #897237 #378949

square

#374E89 #893777 #897237 #378949

split-complementary

#374E89 #894937 #778937

monochromatic

#141C32 #25355D #374E89 #4967B5 #738BC7

Accessibility & contrast

On white

8.04

#374E89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#374E89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374E89

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374E89	#FFFFFF	#000000	##FFFFFF
##374E89	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34548B

Deuteranopia (green-blind)

#294D88

Tritanopia (blue-blind)

#005B65

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #374e89;
/* rgb */ color: rgb(55, 78, 137);
/* oklch */ color: oklch(43.6% 0.102 266.2);

Tailwind

colors: {
  custom: {
    50: '#757fac',
    500: '#374e89',
    950: '#000000',
  },
}

SCSS

$custom: #374e89;
$custom-light: #757fac;
$custom-dark: #000000;

JSON

{
  "hex": "#374e89",
  "rgb": {
    "r": 55,
    "g": 78,
    "b": 137
  },
  "hsl": {
    "h": 223.171,
    "s": 42.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.43562,
    "c": 0.1016,
    "h": 266.2
  },
  "luminance": 0.08067
}

Semantic roles & 50–950 ramp

primary

#374E89

secondary

#B09D6C

accent

#AF55D2

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #374E89

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

Preview Lab → · Contrast checker → · Palette generator →