#451B66#451B66

#451B66 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.6% C 0.126 H 306.2°. Best body text is #FFFFFF at 13.11:1 contrast (WCAG AA passes).

Color values

HEX	#451B66
RGB	rgb(69, 27, 102)
HSL	hsl(274, 58%, 25%)
HSV	hsv(274, 74%, 40%)
CMYK	cmyk(32.4%, 73.5%, 0%, 60%)
CIE-LAB	lab(20.08, 34.84, -35.96)
CIE-LCH	lch(20.08, 50.07, 314.10°)
OKLab	oklab(32.64% 0.0746 -0.102)
OKLCH	oklch(32.64% 0.126 306.2)
XYZ	xyz(5.2439, 3.0084, 12.8722)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#451B66 #3C661B

analogous

#1F1B66 #451B66 #661B61

triadic

#451B66 #66451B #1B6645

tetradic

#451B66 #661F1B #3C661B #1B6166

square

#451B66 #661F1B #3C661B #1B6166

split-complementary

#451B66 #61661B #1B661F

monochromatic

#100618 #240E36 #451B66 #662896 #8635C7

Accessibility & contrast

On white

13.11

#451B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#451B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #451B66

13.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##451B66	#FFFFFF	#000000	##FFFFFF
##451B66	1.00	13.11	1.60	13.11
#FFFFFF	13.11	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F68

Deuteranopia (green-blind)

#033164

Tritanopia (blue-blind)

#3F2C3E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #451b66;
/* rgb */ color: rgb(69, 27, 102);
/* oklch */ color: oklch(32.6% 0.126 306.2);

Tailwind

colors: {
  custom: {
    50: '#7c5b92',
    500: '#451b66',
    950: '#000000',
  },
}

SCSS

$custom: #451b66;
$custom-light: #7c5b92;
$custom-dark: #000000;

JSON

{
  "hex": "#451b66",
  "rgb": {
    "r": 69,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 273.6,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.3264,
    "c": 0.12642,
    "h": 306.2
  },
  "luminance": 0.03008
}

Semantic roles & 50–950 ramp

primary

#451B66

secondary

#699B41

accent

#E1468B

background

#F7F5F9

surface

#EEE9F1

border

#C9C5CB

text

#0A040D

muted

#7C797E

Preview Lab

Preview with #451B66

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

Preview Lab → · Contrast checker → · Palette generator →