#37448B#37448B

#37448B is a dark, moderate blue. Relative luminance 0.068; OKLCH L 41.5% C 0.118 H 272.4°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#37448B
RGB	rgb(55, 68, 139)
HSL	hsl(231, 43%, 38%)
HSV	hsv(231, 60%, 55%)
CMYK	cmyk(60.4%, 51.1%, 0%, 45.5%)
CIE-LAB	lab(31.37, 17.66, -41.28)
CIE-LCH	lch(31.37, 44.90, 293.16°)
OKLab	oklab(41.5% 0.0051 -0.118)
OKLCH	oklch(41.5% 0.118 272.4)
XYZ	xyz(8.3013, 6.8099, 25.2981)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37448B #8B7E37

analogous

#376E8B #37448B #54378B

triadic

#37448B #8B3744 #448B37

tetradic

#37448B #8B376E #8B7E37 #378B54

square

#37448B #8B376E #8B7E37 #378B54

split-complementary

#37448B #8B5437 #6E8B37

monochromatic

#141933 #262F5F #37448B #485AB7 #7481C8

Accessibility & contrast

On white

8.89

#37448B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#37448B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37448B

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37448B	#FFFFFF	#000000	##FFFFFF
##37448B	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4E8E

Deuteranopia (green-blind)

#0F468A

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #37448b;
/* rgb */ color: rgb(55, 68, 139);
/* oklch */ color: oklch(41.5% 0.118 272.4);

Tailwind

colors: {
  custom: {
    50: '#7677ad',
    500: '#37448b',
    950: '#000000',
  },
}

SCSS

$custom: #37448b;
$custom-light: #7677ad;
$custom-dark: #000000;

JSON

{
  "hex": "#37448b",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 139
  },
  "hsl": {
    "h": 230.714,
    "s": 43.299,
    "l": 38.039
  },
  "oklch": {
    "l": 0.41503,
    "c": 0.11815,
    "h": 272.4
  },
  "luminance": 0.06811
}

Semantic roles & 50–950 ramp

primary

#37448B

secondary

#B1A66D

accent

#C055D3

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #37448B

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

Preview Lab → · Contrast checker → · Palette generator →