#42489A#42489A

#42489A is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.2% C 0.132 H 276.4°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#42489A
RGB	rgb(66, 72, 154)
HSL	hsl(236, 40%, 43%)
HSV	hsv(236, 57%, 60%)
CMYK	cmyk(57.1%, 53.2%, 0%, 39.6%)
CIE-LAB	lab(34.24, 22.55, -45.77)
CIE-LCH	lch(34.24, 51.02, 296.23°)
OKLab	oklab(44.19% 0.0148 -0.1309)
OKLCH	oklch(44.19% 0.132 276.4)
XYZ	xyz(10.3950, 8.1254, 31.5862)
Luminance	0.0813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42489A #9A9442

analogous

#42749A #42489A #68429A

triadic

#42489A #9A4248 #489A42

tetradic

#42489A #9A4274 #9A9442 #429A68

square

#42489A #9A4274 #9A9442 #429A68

split-complementary

#42489A #9A6842 #749A42

monochromatic

#1D2044 #30346F #42489A #5F65BA #8A8ECD

Accessibility & contrast

On white

8.00

#42489A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#42489A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42489A

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42489A	#FFFFFF	#000000	##FFFFFF
##42489A	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A549D

Deuteranopia (green-blind)

#074D98

Tritanopia (blue-blind)

#115B6A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #42489a;
/* rgb */ color: rgb(66, 72, 154);
/* oklch */ color: oklch(44.2% 0.132 276.4);

Tailwind

colors: {
  custom: {
    50: '#7e7ab8',
    500: '#42489a',
    950: '#000000',
  },
}

SCSS

$custom: #42489a;
$custom-light: #7e7ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#42489a",
  "rgb": {
    "r": 66,
    "g": 72,
    "b": 154
  },
  "hsl": {
    "h": 235.909,
    "s": 40,
    "l": 43.137
  },
  "oklch": {
    "l": 0.44194,
    "c": 0.13175,
    "h": 276.4
  },
  "luminance": 0.08126
}

Semantic roles & 50–950 ramp

primary

#42489A

secondary

#B8B480

accent

#C858D0

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #42489A

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

Preview Lab → · Contrast checker → · Palette generator →