#42419B#42419B

#42419B is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.9% C 0.143 H 279.0°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#42419B
RGB	rgb(66, 65, 155)
HSL	hsl(241, 41%, 43%)
HSV	hsv(241, 58%, 61%)
CMYK	cmyk(57.4%, 58.1%, 0%, 39.2%)
CIE-LAB	lab(32.49, 27.44, -49.21)
CIE-LCH	lch(32.49, 56.34, 299.14°)
OKLab	oklab(42.91% 0.0224 -0.1411)
OKLCH	oklch(42.91% 0.143 279)
XYZ	xyz(10.0516, 7.3047, 31.8843)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42419B #9A9B41

analogous

#416D9B #42419B #6F419B

triadic

#42419B #9B4241 #419B42

tetradic

#42419B #9B416D #9A9B41 #419B6F

square

#42419B #9B416D #9A9B41 #419B6F

split-complementary

#42419B #9B6F41 #6D9B41

monochromatic

#1D1D45 #302F70 #42419B #5F5EBB #8A89CD

Accessibility & contrast

On white

8.53

#42419B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#42419B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42419B

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42419B	#FFFFFF	#000000	##FFFFFF
##42419B	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509E

Deuteranopia (green-blind)

#004999

Tritanopia (blue-blind)

#115667

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #42419b;
/* rgb */ color: rgb(66, 65, 155);
/* oklch */ color: oklch(42.9% 0.143 279.0);

Tailwind

colors: {
  custom: {
    50: '#7f75b9',
    500: '#42419b',
    950: '#000000',
  },
}

SCSS

$custom: #42419b;
$custom-light: #7f75b9;
$custom-dark: #000000;

JSON

{
  "hex": "#42419b",
  "rgb": {
    "r": 66,
    "g": 65,
    "b": 155
  },
  "hsl": {
    "h": 240.667,
    "s": 40.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42909,
    "c": 0.14285,
    "h": 279
  },
  "luminance": 0.07305
}

Semantic roles & 50–950 ramp

primary

#42419B

secondary

#B8B880

accent

#D157CF

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0811

muted

#7C7B80

Preview Lab

Preview with #42419B

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

Preview Lab → · Contrast checker → · Palette generator →