#37479C#37479C

#37479C is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.4% C 0.139 H 271.4°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#37479C
RGB	rgb(55, 71, 156)
HSL	hsl(230, 48%, 41%)
HSV	hsv(230, 65%, 61%)
CMYK	cmyk(64.7%, 54.5%, 0%, 38.8%)
CIE-LAB	lab(33.39, 21.80, -48.40)
CIE-LCH	lch(33.39, 53.08, 294.24°)
OKLab	oklab(43.41% 0.0034 -0.1389)
OKLCH	oklch(43.41% 0.139 271.4)
XYZ	xyz(9.8275, 7.7181, 32.4179)
Luminance	0.0772 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37479C #9C8C37

analogous

#377A9C #37479C #5A379C

triadic

#37479C #9C3747 #479C37

tetradic

#37479C #9C377A #9C8C37 #379C5A

square

#37479C #9C377A #9C8C37 #379C5A

split-complementary

#37479C #9C5A37 #7A9C37

monochromatic

#171E42 #27326F #37479C #4F61C1 #7C8AD1

Accessibility & contrast

On white

8.26

#37479C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#37479C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37479C

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37479C	#FFFFFF	#000000	##FFFFFF
##37479C	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D539F

Deuteranopia (green-blind)

#004A9A

Tritanopia (blue-blind)

#005B6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #37479c;
/* rgb */ color: rgb(55, 71, 156);
/* oklch */ color: oklch(43.4% 0.139 271.4);

Tailwind

colors: {
  custom: {
    50: '#797aba',
    500: '#37479c',
    950: '#000000',
  },
}

SCSS

$custom: #37479c;
$custom-light: #797aba;
$custom-dark: #000000;

JSON

{
  "hex": "#37479c",
  "rgb": {
    "r": 55,
    "g": 71,
    "b": 156
  },
  "hsl": {
    "h": 230.495,
    "s": 47.867,
    "l": 41.373
  },
  "oklch": {
    "l": 0.43407,
    "c": 0.13897,
    "h": 271.4
  },
  "luminance": 0.07719
}

Semantic roles & 50–950 ramp

primary

#37479C

secondary

#BAAF75

accent

#C250D7

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #37479C

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

Preview Lab → · Contrast checker → · Palette generator →