#40237B#40237B

#40237B is a dark, vivid violet. Relative luminance 0.037; OKLCH L 34.9% C 0.140 H 292.8°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#40237B
RGB	rgb(64, 35, 123)
HSL	hsl(260, 56%, 31%)
HSV	hsv(260, 72%, 48%)
CMYK	cmyk(48%, 71.5%, 0%, 51.8%)
CIE-LAB	lab(22.73, 35.30, -45.23)
CIE-LCH	lch(22.73, 57.37, 307.97°)
OKLab	oklab(34.94% 0.0544 -0.1295)
OKLCH	oklch(34.94% 0.14 292.8)
XYZ	xyz(6.2895, 3.7219, 19.1221)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40237B #5E7B23

analogous

#23327B #40237B #6C237B

triadic

#40237B #7B4023 #237B40

tetradic

#40237B #7B2332 #5E7B23 #237B6C

square

#40237B #7B2332 #5E7B23 #237B6C

split-complementary

#40237B #7B6C23 #327B23

monochromatic

#0E081C #27154B #40237B #5931AB #764CCC

Accessibility & contrast

On white

12.04

#40237B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#40237B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40237B

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40237B	#FFFFFF	#000000	##FFFFFF
##40237B	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377E

Deuteranopia (green-blind)

#003579

Tritanopia (blue-blind)

#2E394C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #40237b;
/* rgb */ color: rgb(64, 35, 123);
/* oklch */ color: oklch(34.9% 0.140 292.8);

Tailwind

colors: {
  custom: {
    50: '#7b60a2',
    500: '#40237b',
    950: '#000000',
  },
}

SCSS

$custom: #40237b;
$custom-light: #7b60a2;
$custom-dark: #000000;

JSON

{
  "hex": "#40237b",
  "rgb": {
    "r": 64,
    "g": 35,
    "b": 123
  },
  "hsl": {
    "h": 259.773,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.34937,
    "c": 0.14046,
    "h": 292.8
  },
  "luminance": 0.03722
}

Semantic roles & 50–950 ramp

primary

#40237B

secondary

#8DAE4C

accent

#DF49AE

background

#F7F5FA

surface

#EEEAF4

border

#C9C6CE

text

#0A050F

muted

#7C797F

Preview Lab

Preview with #40237B

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

Preview Lab → · Contrast checker → · Palette generator →