#37489D#37489D

#37489D is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.7% C 0.139 H 271.0°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#37489D
RGB	rgb(55, 72, 157)
HSL	hsl(230, 48%, 42%)
HSV	hsv(230, 65%, 62%)
CMYK	cmyk(65%, 54.1%, 0%, 38.4%)
CIE-LAB	lab(33.73, 21.49, -48.44)
CIE-LCH	lch(33.73, 53.00, 293.93°)
OKLab	oklab(43.69% 0.0025 -0.1391)
OKLCH	oklch(43.69% 0.139 271)
XYZ	xyz(9.9767, 7.8804, 32.8871)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37489D #9D8C37

analogous

#377B9D #37489D #59379D

triadic

#37489D #9D3748 #489D37

tetradic

#37489D #9D377B #9D8C37 #379D59

square

#37489D #9D377B #9D8C37 #379D59

split-complementary

#37489D #9D5937 #7B9D37

monochromatic

#171E42 #273370 #37489D #5063C2 #7D8BD1

Accessibility & contrast

On white

8.15

#37489D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#37489D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37489D

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37489D	#FFFFFF	#000000	##FFFFFF
##37489D	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F54A0

Deuteranopia (green-blind)

#004B9B

Tritanopia (blue-blind)

#005C6B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #37489d;
/* rgb */ color: rgb(55, 72, 157);
/* oklch */ color: oklch(43.7% 0.139 271.0);

Tailwind

colors: {
  custom: {
    50: '#797abb',
    500: '#37489d',
    950: '#000000',
  },
}

SCSS

$custom: #37489d;
$custom-light: #797abb;
$custom-dark: #000000;

JSON

{
  "hex": "#37489d",
  "rgb": {
    "r": 55,
    "g": 72,
    "b": 157
  },
  "hsl": {
    "h": 230,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.43688,
    "c": 0.13908,
    "h": 271
  },
  "luminance": 0.07881
}

Semantic roles & 50–950 ramp

primary

#37489D

secondary

#BBAF75

accent

#C150D8

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #37489D

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

Preview Lab → · Contrast checker → · Palette generator →