#282FAB#282FAB

#282FAB is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.5% C 0.192 H 271.2°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#282FAB
RGB	rgb(40, 47, 171)
HSL	hsl(237, 62%, 41%)
HSV	hsv(237, 77%, 67%)
CMYK	cmyk(76.6%, 72.5%, 0%, 32.9%)
CIE-LAB	lab(27.91, 40.64, -66.43)
CIE-LCH	lch(27.91, 77.88, 301.46°)
OKLab	oklab(39.55% 0.004 -0.1923)
OKLCH	oklch(39.55% 0.192 271.2)
XYZ	xyz(9.2398, 5.4234, 39.0800)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282FAB #ABA428

analogous

#2871AB #282FAB #6328AB

triadic

#282FAB #AB282F #2FAB28

tetradic

#282FAB #AB2871 #ABA428 #28AB63

square

#282FAB #AB2871 #ABA428 #28AB63

split-complementary

#282FAB #AB6328 #71AB28

monochromatic

#111448 #1C2179 #282FAB #3E46D2 #7076DE

Accessibility & contrast

On white

10.07

#282FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#282FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282FAB

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282FAB	#FFFFFF	#000000	##FFFFFF
##282FAB	1.00	10.07	2.08	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AF

Deuteranopia (green-blind)

#003BA9

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #282fab;
/* rgb */ color: rgb(40, 47, 171);
/* oklch */ color: oklch(39.5% 0.192 271.2);

Tailwind

colors: {
  custom: {
    50: '#7868c5',
    500: '#282fab',
    950: '#000000',
  },
}

SCSS

$custom: #282fab;
$custom-light: #7868c5;
$custom-dark: #000000;

JSON

{
  "hex": "#282fab",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 171
  },
  "hsl": {
    "h": 236.794,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39547,
    "c": 0.19235,
    "h": 271.2
  },
  "luminance": 0.05424
}

Semantic roles & 50–950 ramp

primary

#282FAB

secondary

#C4C06A

accent

#DC43E5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #282FAB

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

Preview Lab → · Contrast checker → · Palette generator →