#42289B#42289B

#42289B is a dark, vivid violet. Relative luminance 0.050; OKLCH L 38.8% C 0.174 H 285.3°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#42289B
RGB	rgb(66, 40, 155)
HSL	hsl(254, 59%, 38%)
HSV	hsv(254, 74%, 61%)
CMYK	cmyk(57.4%, 74.2%, 0%, 39.2%)
CIE-LAB	lab(26.85, 42.51, -58.40)
CIE-LCH	lch(26.85, 72.23, 306.05°)
OKLab	oklab(38.82% 0.046 -0.1681)
OKLCH	oklch(38.82% 0.174 285.3)
XYZ	xyz(8.9202, 5.0419, 31.5071)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42289B #819B28

analogous

#28489B #42289B #7B289B

triadic

#42289B #9B4228 #289B42

tetradic

#42289B #9B2848 #819B28 #289B7B

square

#42289B #9B2848 #819B28 #289B7B

split-complementary

#42289B #9B7B28 #489B28

monochromatic

#190F3A #2D1B6A #42289B #5735CB #8066D7

Accessibility & contrast

On white

10.46

#42289B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#42289B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42289B

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42289B	#FFFFFF	#000000	##FFFFFF
##42289B	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439E

Deuteranopia (green-blind)

#003C99

Tritanopia (blue-blind)

#16475F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #42289b;
/* rgb */ color: rgb(66, 40, 155);
/* oklch */ color: oklch(38.8% 0.174 285.3);

Tailwind

colors: {
  custom: {
    50: '#8165ba',
    500: '#42289b',
    950: '#000000',
  },
}

SCSS

$custom: #42289b;
$custom-light: #8165ba;
$custom-dark: #000000;

JSON

{
  "hex": "#42289b",
  "rgb": {
    "r": 66,
    "g": 40,
    "b": 155
  },
  "hsl": {
    "h": 253.565,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.38818,
    "c": 0.17429,
    "h": 285.3
  },
  "luminance": 0.05042
}

Semantic roles & 50–950 ramp

primary

#42289B

secondary

#A9BD61

accent

#E246BF

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #42289B

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

Preview Lab → · Contrast checker → · Palette generator →