#42489F#42489F

#42489F is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.6% C 0.139 H 276.2°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#42489F
RGB	rgb(66, 72, 159)
HSL	hsl(236, 41%, 44%)
HSV	hsv(236, 58%, 62%)
CMYK	cmyk(58.5%, 54.7%, 0%, 37.6%)
CIE-LAB	lab(34.59, 24.26, -48.23)
CIE-LCH	lch(34.59, 53.99, 296.71°)
OKLab	oklab(44.57% 0.0151 -0.1381)
OKLCH	oklch(44.57% 0.139 276.2)
XYZ	xyz(10.8201, 8.2954, 33.8252)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42489F #9F9942

analogous

#42779F #42489F #6B429F

triadic

#42489F #9F4248 #489F42

tetradic

#42489F #9F4277 #9F9942 #429F6B

square

#42489F #9F4277 #9F9942 #429F6B

split-complementary

#42489F #9F6B42 #779F42

monochromatic

#1E2149 #303474 #42489F #6167BD #8C90CF

Accessibility & contrast

On white

7.90

#42489F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#42489F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42489F

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42489F	#FFFFFF	#000000	##FFFFFF
##42489F	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1155A2

Deuteranopia (green-blind)

#004E9D

Tritanopia (blue-blind)

#055C6C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #42489f;
/* rgb */ color: rgb(66, 72, 159);
/* oklch */ color: oklch(44.6% 0.139 276.2);

Tailwind

colors: {
  custom: {
    50: '#7f7bbc',
    500: '#42489f',
    950: '#000000',
  },
}

SCSS

$custom: #42489f;
$custom-light: #7f7bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#42489f",
  "rgb": {
    "r": 66,
    "g": 72,
    "b": 159
  },
  "hsl": {
    "h": 236.129,
    "s": 41.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.44566,
    "c": 0.13897,
    "h": 276.2
  },
  "luminance": 0.08296
}

Semantic roles & 50–950 ramp

primary

#42489F

secondary

#BAB782

accent

#C957D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #42489F

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

Preview Lab → · Contrast checker → · Palette generator →