#370E57#370E57

#370E57 is a dark, vivid violet. Relative luminance 0.018; OKLCH L 27.8% C 0.122 H 305.0°. Best body text is #FFFFFF at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#370E57
RGB	rgb(55, 14, 87)
HSL	hsl(274, 72%, 20%)
HSV	hsv(274, 84%, 34%)
CMYK	cmyk(36.8%, 83.9%, 0%, 65.9%)
CIE-LAB	lab(14.48, 34.20, -35.15)
CIE-LCH	lch(14.48, 49.05, 314.22°)
OKLab	oklab(27.83% 0.07 -0.1001)
OKLCH	oklch(27.83% 0.122 305)
XYZ	xyz(3.4525, 1.8144, 9.1833)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.66

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370E57 #2E570E

analogous

#130E57 #370E57 #570E52

triadic

#370E57 #57370E #0E5737

tetradic

#370E57 #57130E #2E570E #0E5257

square

#370E57 #57130E #2E570E #0E5257

split-complementary

#370E57 #52570E #0E5713

monochromatic

#11041A #160622 #370E57 #58168C #7A1FC0

Accessibility & contrast

On white

15.41

#370E57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#370E57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370E57

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370E57	#FFFFFF	#000000	##FFFFFF
##370E57	1.00	15.41	1.36	15.41
#FFFFFF	15.41	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002459

Deuteranopia (green-blind)

#002556

Tritanopia (blue-blind)

#312132

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #370e57;
/* rgb */ color: rgb(55, 14, 87);
/* oklch */ color: oklch(27.8% 0.122 305.0);

Tailwind

colors: {
  custom: {
    50: '#725287',
    500: '#370e57',
    950: '#000000',
  },
}

SCSS

$custom: #370e57;
$custom-light: #725287;
$custom-dark: #000000;

JSON

{
  "hex": "#370e57",
  "rgb": {
    "r": 55,
    "g": 14,
    "b": 87
  },
  "hsl": {
    "h": 273.699,
    "s": 72.277,
    "l": 19.804
  },
  "oklch": {
    "l": 0.27828,
    "c": 0.12218,
    "h": 305
  },
  "luminance": 0.01814
}

Semantic roles & 50–950 ramp

primary

#370E57

secondary

#5A9130

accent

#EF3989

background

#F7F4F8

surface

#EDE7EF

border

#C8C3CA

text

#08020B

muted

#7B787C

Preview Lab

Preview with #370E57

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

Preview Lab → · Contrast checker → · Palette generator →