#370F5E#370F5E

#370F5E is a dark, vivid violet. Relative luminance 0.020; OKLCH L 28.6% C 0.129 H 301.3°. Best body text is #FFFFFF at 15.08:1 contrast (WCAG AA passes).

Color values

HEX	#370F5E
RGB	rgb(55, 15, 94)
HSL	hsl(270, 72%, 21%)
HSV	hsv(270, 84%, 37%)
CMYK	cmyk(41.5%, 84%, 0%, 63.1%)
CIE-LAB	lab(15.29, 35.61, -38.55)
CIE-LCH	lch(15.29, 52.47, 312.73°)
OKLab	oklab(28.59% 0.067 -0.1101)
OKLCH	oklch(28.59% 0.129 301.3)
XYZ	xyz(3.7663, 1.9620, 10.7678)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Dark Indigo

#1F0954

ΔE00 4.35

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#370F5E #365E0F

analogous

#100F5E #370F5E #5E0F5E

triadic

#370F5E #5E370F #0F5E37

tetradic

#370F5E #5E100F #365E0F #0F5E5E

square

#370F5E #5E100F #365E0F #0F5E5E

split-complementary

#370F5E #5E5E0F #0F5E10

monochromatic

#0F041A #180729 #370F5E #561793 #7520C8

Accessibility & contrast

On white

15.08

#370F5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#370F5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #370F5E

15.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##370F5E	#FFFFFF	#000000	##FFFFFF
##370F5E	1.00	15.08	1.39	15.08
#FFFFFF	15.08	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002660

Deuteranopia (green-blind)

#00265C

Tritanopia (blue-blind)

#2E2436

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #370f5e;
/* rgb */ color: rgb(55, 15, 94);
/* oklch */ color: oklch(28.6% 0.129 301.3);

Tailwind

colors: {
  custom: {
    50: '#73538c',
    500: '#370f5e',
    950: '#000000',
  },
}

SCSS

$custom: #370f5e;
$custom-light: #73538c;
$custom-dark: #000000;

JSON

{
  "hex": "#370f5e",
  "rgb": {
    "r": 55,
    "g": 15,
    "b": 94
  },
  "hsl": {
    "h": 270.38,
    "s": 72.477,
    "l": 21.373
  },
  "oklch": {
    "l": 0.28594,
    "c": 0.12889,
    "h": 301.3
  },
  "luminance": 0.01962
}

Semantic roles & 50–950 ramp

primary

#370F5E

secondary

#649731

accent

#EF3993

background

#F7F4F8

surface

#EDE7F0

border

#C8C3CB

text

#08030C

muted

#7B787D

Preview Lab

Preview with #370F5E

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

Preview Lab → · Contrast checker → · Palette generator →