#37339E#37339E

#37339E is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.9% C 0.167 H 277.3°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#37339E
RGB	rgb(55, 51, 158)
HSL	hsl(242, 51%, 41%)
HSV	hsv(242, 68%, 62%)
CMYK	cmyk(65.2%, 67.7%, 0%, 38%)
CIE-LAB	lab(28.51, 35.46, -57.56)
CIE-LCH	lch(28.51, 67.60, 301.64°)
OKLab	oklab(39.85% 0.0212 -0.166)
OKLCH	oklch(39.85% 0.167 277.3)
XYZ	xyz(8.9289, 5.6478, 32.9607)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37339E #9A9E33

analogous

#33649E #37339E #6C339E

triadic

#37339E #9E3733 #339E37

tetradic

#37339E #9E3364 #9A9E33 #339E6C

square

#37339E #9E3364 #9A9E33 #339E6C

split-complementary

#37339E #9E6C33 #649E33

monochromatic

#171541 #272470 #37339E #4E4AC4 #7B78D3

Accessibility & contrast

On white

9.86

#37339E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#37339E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37339E

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37339E	#FFFFFF	#000000	##FFFFFF
##37339E	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A1

Deuteranopia (green-blind)

#003F9C

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #37339e;
/* rgb */ color: rgb(55, 51, 158);
/* oklch */ color: oklch(39.9% 0.167 277.3);

Tailwind

colors: {
  custom: {
    50: '#7b6bbc',
    500: '#37339e',
    950: '#000000',
  },
}

SCSS

$custom: #37339e;
$custom-light: #7b6bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#37339e",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 158
  },
  "hsl": {
    "h": 242.243,
    "s": 51.196,
    "l": 40.98
  },
  "oklch": {
    "l": 0.3985,
    "c": 0.16736,
    "h": 277.3
  },
  "luminance": 0.05648
}

Semantic roles & 50–950 ramp

primary

#37339E

secondary

#B9BC71

accent

#DB4DD5

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #37339E

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

Preview Lab → · Contrast checker → · Palette generator →