#282AA4#282AA4

#282AA4 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.0% C 0.189 H 272.3°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#282AA4
RGB	rgb(40, 42, 164)
HSL	hsl(239, 61%, 40%)
HSV	hsv(239, 76%, 64%)
CMYK	cmyk(75.6%, 74.4%, 0%, 35.7%)
CIE-LAB	lab(26.12, 41.19, -65.16)
CIE-LCH	lch(26.12, 77.09, 302.30°)
OKLab	oklab(38.05% 0.0074 -0.1886)
OKLCH	oklch(38.05% 0.189 272.3)
XYZ	xyz(8.4016, 4.7865, 35.5959)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282AA4 #A4A228

analogous

#2868A4 #282AA4 #6428A4

triadic

#282AA4 #A4282A #2AA428

tetradic

#282AA4 #A42868 #A4A228 #28A464

square

#282AA4 #A42868 #A4A228 #28A464

split-complementary

#282AA4 #A46428 #68A428

monochromatic

#101142 #1C1D73 #282AA4 #3A3DCF #6B6DDB

Accessibility & contrast

On white

10.73

#282AA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#282AA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282AA4

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282AA4	#FFFFFF	#000000	##FFFFFF
##282AA4	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A8

Deuteranopia (green-blind)

#0038A2

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #282aa4;
/* rgb */ color: rgb(40, 42, 164);
/* oklch */ color: oklch(38.0% 0.189 272.3);

Tailwind

colors: {
  custom: {
    50: '#7765c0',
    500: '#282aa4',
    950: '#000000',
  },
}

SCSS

$custom: #282aa4;
$custom-light: #7765c0;
$custom-dark: #000000;

JSON

{
  "hex": "#282aa4",
  "rgb": {
    "r": 40,
    "g": 42,
    "b": 164
  },
  "hsl": {
    "h": 239.032,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.3805,
    "c": 0.18874,
    "h": 272.3
  },
  "luminance": 0.04787
}

Semantic roles & 50–950 ramp

primary

#282AA4

secondary

#C1C066

accent

#E144E4

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #282AA4

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

Preview Lab → · Contrast checker → · Palette generator →