#37489B#37489B

#37489B is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.5% C 0.136 H 271.0°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#37489B
RGB	rgb(55, 72, 155)
HSL	hsl(230, 48%, 41%)
HSV	hsv(230, 65%, 61%)
CMYK	cmyk(64.5%, 53.5%, 0%, 39.2%)
CIE-LAB	lab(33.59, 20.77, -47.47)
CIE-LCH	lch(33.59, 51.81, 293.63°)
OKLab	oklab(43.54% 0.0024 -0.1362)
OKLCH	oklch(43.54% 0.136 271)
XYZ	xyz(9.8073, 7.8127, 31.9952)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37489B #9B8A37

analogous

#377A9B #37489B #58379B

triadic

#37489B #9B3748 #489B37

tetradic

#37489B #9B377A #9B8A37 #379B58

square

#37489B #9B377A #9B8A37 #379B58

split-complementary

#37489B #9B5837 #7A9B37

monochromatic

#171E41 #27336E #37489B #4F62C0 #7C8AD0

Accessibility & contrast

On white

8.19

#37489B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#37489B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37489B

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37489B	#FFFFFF	#000000	##FFFFFF
##37489B	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14549E

Deuteranopia (green-blind)

#004B99

Tritanopia (blue-blind)

#005B6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #37489b;
/* rgb */ color: rgb(55, 72, 155);
/* oklch */ color: oklch(43.5% 0.136 271.0);

Tailwind

colors: {
  custom: {
    50: '#797ab9',
    500: '#37489b',
    950: '#000000',
  },
}

SCSS

$custom: #37489b;
$custom-light: #797ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#37489b",
  "rgb": {
    "r": 55,
    "g": 72,
    "b": 155
  },
  "hsl": {
    "h": 229.8,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.43535,
    "c": 0.1362,
    "h": 271
  },
  "luminance": 0.07814
}

Semantic roles & 50–950 ramp

primary

#37489B

secondary

#BAAE74

accent

#C051D7

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #37489B

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

Preview Lab → · Contrast checker → · Palette generator →