#431B77#431B77

#431B77 is a dark, vivid violet. Relative luminance 0.033; OKLCH L 33.9% C 0.146 H 297.8°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#431B77
RGB	rgb(67, 27, 119)
HSL	hsl(266, 63%, 29%)
HSV	hsv(266, 77%, 47%)
CMYK	cmyk(43.7%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(21.24, 38.96, -45.09)
CIE-LCH	lch(21.24, 59.59, 310.83°)
OKLab	oklab(33.86% 0.068 -0.129)
OKLCH	oklch(33.86% 0.146 297.8)
XYZ	xyz(6.0356, 3.3090, 17.7699)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.07

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#431B77 #4F771B

analogous

#1B2177 #431B77 #711B77

triadic

#431B77 #77431B #1B7743

tetradic

#431B77 #771B21 #4F771B #1B7771

square

#431B77 #771B21 #4F771B #1B7771

split-complementary

#431B77 #77711B #21771B

monochromatic

#0E0619 #271045 #431B77 #5F26A9 #7C3AD2

Accessibility & contrast

On white

12.64

#431B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#431B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #431B77

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##431B77	#FFFFFF	#000000	##FFFFFF
##431B77	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337A

Deuteranopia (green-blind)

#003275

Tritanopia (blue-blind)

#363348

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #431b77;
/* rgb */ color: rgb(67, 27, 119);
/* oklch */ color: oklch(33.9% 0.146 297.8);

Tailwind

colors: {
  custom: {
    50: '#7d5c9f',
    500: '#431b77',
    950: '#000000',
  },
}

SCSS

$custom: #431b77;
$custom-light: #7d5c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#431b77",
  "rgb": {
    "r": 67,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 266.087,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.33855,
    "c": 0.1458,
    "h": 297.8
  },
  "luminance": 0.03309
}

Semantic roles & 50–950 ramp

primary

#431B77

secondary

#7EAB42

accent

#E6429F

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#0A040F

muted

#7C797E

Preview Lab

Preview with #431B77

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

Preview Lab → · Contrast checker → · Palette generator →