#37479F#37479F

#37479F is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.6% C 0.143 H 271.4°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#37479F
RGB	rgb(55, 71, 159)
HSL	hsl(231, 49%, 42%)
HSV	hsv(231, 65%, 62%)
CMYK	cmyk(65.4%, 55.3%, 0%, 37.6%)
CIE-LAB	lab(33.61, 22.88, -49.85)
CIE-LCH	lch(33.61, 54.85, 294.66°)
OKLab	oklab(43.64% 0.0036 -0.1432)
OKLCH	oklch(43.64% 0.143 271.4)
XYZ	xyz(10.0847, 7.8210, 33.7723)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37479F #9F8F37

analogous

#377B9F #37479F #5B379F

triadic

#37479F #9F3747 #479F37

tetradic

#37479F #9F377B #9F8F37 #379F5B

square

#37479F #9F377B #9F8F37 #379F5B

split-complementary

#37479F #9F5B37 #7B9F37

monochromatic

#181E44 #273372 #37479F #5162C3 #7E8BD2

Accessibility & contrast

On white

8.19

#37479F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#37479F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37479F

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37479F	#FFFFFF	#000000	##FFFFFF
##37479F	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)

#0454A2

Deuteranopia (green-blind)

#004B9D

Tritanopia (blue-blind)

#005C6C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #37479f;
/* rgb */ color: rgb(55, 71, 159);
/* oklch */ color: oklch(43.6% 0.143 271.4);

Tailwind

colors: {
  custom: {
    50: '#797abc',
    500: '#37479f',
    950: '#000000',
  },
}

SCSS

$custom: #37479f;
$custom-light: #797abc;
$custom-dark: #000000;

JSON

{
  "hex": "#37479f",
  "rgb": {
    "r": 55,
    "g": 71,
    "b": 159
  },
  "hsl": {
    "h": 230.769,
    "s": 48.598,
    "l": 41.961
  },
  "oklch": {
    "l": 0.4364,
    "c": 0.14327,
    "h": 271.4
  },
  "luminance": 0.07822
}

Semantic roles & 50–950 ramp

primary

#37479F

secondary

#BCB176

accent

#C350D8

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #37479F

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

Preview Lab → · Contrast checker → · Palette generator →