#37339C#37339C

#37339C is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.7% C 0.165 H 277.5°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#37339C
RGB	rgb(55, 51, 156)
HSL	hsl(242, 51%, 41%)
HSV	hsv(242, 67%, 61%)
CMYK	cmyk(64.7%, 67.3%, 0%, 38.8%)
CIE-LAB	lab(28.33, 34.78, -56.63)
CIE-LCH	lch(28.33, 66.46, 301.55°)
OKLab	oklab(39.66% 0.0214 -0.1633)
OKLCH	oklch(39.66% 0.165 277.5)
XYZ	xyz(8.7582, 5.5795, 32.0615)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37339C #989C33

analogous

#33639C #37339C #6B339C

triadic

#37339C #9C3733 #339C37

tetradic

#37339C #9C3363 #989C33 #339C6B

square

#37339C #9C3363 #989C33 #339C6B

split-complementary

#37339C #9C6B33 #639C33

monochromatic

#161540 #27246E #37339C #4D49C3 #7A77D3

Accessibility & contrast

On white

9.92

#37339C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#37339C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37339C

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37339C	#FFFFFF	#000000	##FFFFFF
##37339C	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479F

Deuteranopia (green-blind)

#003E9A

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #37339c;
/* rgb */ color: rgb(55, 51, 156);
/* oklch */ color: oklch(39.7% 0.165 277.5);

Tailwind

colors: {
  custom: {
    50: '#7a6bba',
    500: '#37339c',
    950: '#000000',
  },
}

SCSS

$custom: #37339c;
$custom-light: #7a6bba;
$custom-dark: #000000;

JSON

{
  "hex": "#37339c",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 156
  },
  "hsl": {
    "h": 242.286,
    "s": 50.725,
    "l": 40.588
  },
  "oklch": {
    "l": 0.39664,
    "c": 0.16471,
    "h": 277.5
  },
  "luminance": 0.0558
}

Semantic roles & 50–950 ramp

primary

#37339C

secondary

#B8BB70

accent

#DA4ED5

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #37339C

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

Preview Lab → · Contrast checker → · Palette generator →