#51257B#51257B

#51257B is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.2% C 0.140 H 303.7°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#51257B
RGB	rgb(81, 37, 123)
HSL	hsl(271, 54%, 31%)
HSV	hsv(271, 70%, 48%)
CMYK	cmyk(34.1%, 69.9%, 0%, 51.8%)
CIE-LAB	lab(25.27, 37.81, -41.01)
CIE-LCH	lch(25.27, 55.77, 312.67°)
OKLab	oklab(37.24% 0.0778 -0.1165)
OKLCH	oklch(37.24% 0.14 303.7)
XYZ	xyz(7.6292, 4.5025, 19.2022)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 5.82

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51257B #4F7B25

analogous

#26257B #51257B #7B257A

triadic

#51257B #7B5125 #257B51

tetradic

#51257B #7B2625 #4F7B25 #257A7B

square

#51257B #7B2625 #4F7B25 #257A7B

split-complementary

#51257B #7A7B25 #257B26

monochromatic

#13091D #32174C #51257B #7033AA #8F50CA

Accessibility & contrast

On white

11.05

#51257B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#51257B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51257B

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51257B	#FFFFFF	#000000	##FFFFFF
##51257B	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7E

Deuteranopia (green-blind)

#033C79

Tritanopia (blue-blind)

#49384D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #51257b;
/* rgb */ color: rgb(81, 37, 123);
/* oklch */ color: oklch(37.2% 0.140 303.7);

Tailwind

colors: {
  custom: {
    50: '#8663a2',
    500: '#51257b',
    950: '#000000',
  },
}

SCSS

$custom: #51257b;
$custom-light: #8663a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51257b",
  "rgb": {
    "r": 81,
    "g": 37,
    "b": 123
  },
  "hsl": {
    "h": 270.698,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37235,
    "c": 0.1401,
    "h": 303.7
  },
  "luminance": 0.04503
}

Semantic roles & 50–950 ramp

primary

#51257B

secondary

#7DAD4F

accent

#DD4B92

background

#F8F6FA

surface

#F0EBF3

border

#CBC6CD

text

#0B050F

muted

#7C7A7F

Preview Lab

Preview with #51257B

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

Preview Lab → · Contrast checker → · Palette generator →