#42279B#42279B

#42279B is a dark, vivid violet. Relative luminance 0.050; OKLCH L 38.7% C 0.175 H 285.5°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#42279B
RGB	rgb(66, 39, 155)
HSL	hsl(254, 60%, 38%)
HSV	hsv(254, 75%, 61%)
CMYK	cmyk(57.4%, 74.8%, 0%, 39.2%)
CIE-LAB	lab(26.66, 43.04, -58.71)
CIE-LCH	lch(26.66, 72.80, 306.24°)
OKLab	oklab(38.68% 0.0468 -0.169)
OKLCH	oklch(38.68% 0.175 285.5)
XYZ	xyz(8.8869, 4.9753, 31.4960)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42279B #809B27

analogous

#27469B #42279B #7C279B

triadic

#42279B #9B4227 #279B42

tetradic

#42279B #9B2746 #809B27 #279B7C

square

#42279B #9B2746 #809B27 #279B7C

split-complementary

#42279B #9B7C27 #469B27

monochromatic

#180E39 #2D1B6A #42279B #5733CC #7F64D8

Accessibility & contrast

On white

10.53

#42279B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#42279B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42279B

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42279B	#FFFFFF	#000000	##FFFFFF
##42279B	1.00	10.53	2.00	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429E

Deuteranopia (green-blind)

#003B99

Tritanopia (blue-blind)

#16475F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #42279b;
/* rgb */ color: rgb(66, 39, 155);
/* oklch */ color: oklch(38.7% 0.175 285.5);

Tailwind

colors: {
  custom: {
    50: '#8164ba',
    500: '#42279b',
    950: '#000000',
  },
}

SCSS

$custom: #42279b;
$custom-light: #8164ba;
$custom-dark: #000000;

JSON

{
  "hex": "#42279b",
  "rgb": {
    "r": 66,
    "g": 39,
    "b": 155
  },
  "hsl": {
    "h": 253.966,
    "s": 59.794,
    "l": 38.039
  },
  "oklch": {
    "l": 0.38684,
    "c": 0.17537,
    "h": 285.5
  },
  "luminance": 0.04976
}

Semantic roles & 50–950 ramp

primary

#42279B

secondary

#A8BE60

accent

#E345BE

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #42279B

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

Preview Lab → · Contrast checker → · Palette generator →