#42288B#42288B

#42288B is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.3% C 0.154 H 288.7°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#42288B
RGB	rgb(66, 40, 139)
HSL	hsl(256, 55%, 35%)
HSV	hsv(256, 71%, 55%)
CMYK	cmyk(52.5%, 71.2%, 0%, 45.5%)
CIE-LAB	lab(25.38, 37.65, -50.95)
CIE-LCH	lch(25.38, 63.35, 306.46°)
OKLab	oklab(37.32% 0.0494 -0.1463)
OKLCH	oklch(37.32% 0.154 288.7)
XYZ	xyz(7.6644, 4.5396, 24.8935)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42288B #718B28

analogous

#283F8B #42288B #74288B

triadic

#42288B #8B4228 #288B42

tetradic

#42288B #8B283F #718B28 #288B74

square

#42288B #8B283F #718B28 #288B74

split-complementary

#42288B #8B7428 #3F8B28

monochromatic

#150D2C #2B1A5B #42288B #5936BB #7B5DD0

Accessibility & contrast

On white

11.01

#42288B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#42288B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42288B

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42288B	#FFFFFF	#000000	##FFFFFF
##42288B	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#003A89

Tritanopia (blue-blind)

#274156

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #42288b;
/* rgb */ color: rgb(66, 40, 139);
/* oklch */ color: oklch(37.3% 0.154 288.7);

Tailwind

colors: {
  custom: {
    50: '#7e64ae',
    500: '#42288b',
    950: '#000000',
  },
}

SCSS

$custom: #42288b;
$custom-light: #7e64ae;
$custom-dark: #000000;

JSON

{
  "hex": "#42288b",
  "rgb": {
    "r": 66,
    "g": 40,
    "b": 139
  },
  "hsl": {
    "h": 255.758,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.37319,
    "c": 0.15438,
    "h": 288.7
  },
  "luminance": 0.0454
}

Semantic roles & 50–950 ramp

primary

#42288B

secondary

#9DB659

accent

#DF49B7

background

#F8F6FA

surface

#EFEBF4

border

#CAC6CE

text

#0B0510

muted

#7C7A7F

Preview Lab

Preview with #42288B

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

Preview Lab → · Contrast checker → · Palette generator →