#37339F#37339F

#37339F is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.9% C 0.169 H 277.2°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#37339F
RGB	rgb(55, 51, 159)
HSL	hsl(242, 51%, 41%)
HSV	hsv(242, 68%, 62%)
CMYK	cmyk(65.4%, 67.9%, 0%, 37.6%)
CIE-LAB	lab(28.60, 35.80, -58.01)
CIE-LCH	lch(28.60, 68.17, 301.68°)
OKLab	oklab(39.94% 0.0211 -0.1673)
OKLCH	oklch(39.94% 0.169 277.2)
XYZ	xyz(9.0154, 5.6823, 33.4159)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37339F #9B9F33

analogous

#33659F #37339F #6D339F

triadic

#37339F #9F3733 #339F37

tetradic

#37339F #9F3365 #9B9F33 #339F6D

square

#37339F #9F3365 #9B9F33 #339F6D

split-complementary

#37339F #9F6D33 #659F33

monochromatic

#171542 #272471 #37339F #4F4AC5 #7C79D4

Accessibility & contrast

On white

9.83

#37339F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#37339F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37339F

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37339F	#FFFFFF	#000000	##FFFFFF
##37339F	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A2

Deuteranopia (green-blind)

#003F9D

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #37339f;
/* rgb */ color: rgb(55, 51, 159);
/* oklch */ color: oklch(39.9% 0.169 277.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#37339f",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 159
  },
  "hsl": {
    "h": 242.222,
    "s": 51.429,
    "l": 41.176
  },
  "oklch": {
    "l": 0.39943,
    "c": 0.16867,
    "h": 277.2
  },
  "luminance": 0.05683
}

Semantic roles & 50–950 ramp

primary

#37339F

secondary

#BABC71

accent

#DB4DD6

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #37339F

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

Preview Lab → · Contrast checker → · Palette generator →