#282A8B#282A8B

#282A8B is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.5% C 0.156 H 274.1°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#282A8B
RGB	rgb(40, 42, 139)
HSL	hsl(239, 55%, 35%)
HSV	hsv(239, 71%, 55%)
CMYK	cmyk(71.2%, 69.8%, 0%, 45.5%)
CIE-LAB	lab(23.57, 32.43, -54.00)
CIE-LCH	lch(23.57, 62.99, 300.99°)
OKLab	oklab(35.46% 0.0112 -0.156)
OKLCH	oklch(35.46% 0.156 274.1)
XYZ	xyz(6.3617, 3.9705, 24.8522)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282A8B #8B8928

analogous

#285B8B #282A8B #58288B

triadic

#282A8B #8B282A #2A8B28

tetradic

#282A8B #8B285B #8B8928 #288B58

square

#282A8B #8B285B #8B8928 #288B58

split-complementary

#282A8B #8B5828 #5B8B28

monochromatic

#0D0D2C #1A1C5B #282A8B #3638BB #5D5FD0

Accessibility & contrast

On white

11.70

#282A8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#282A8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282A8B

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282A8B	#FFFFFF	#000000	##FFFFFF
##282A8B	1.00	11.70	1.79	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8E

Deuteranopia (green-blind)

#003489

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #282a8b;
/* rgb */ color: rgb(40, 42, 139);
/* oklch */ color: oklch(35.5% 0.156 274.1);

Tailwind

colors: {
  custom: {
    50: '#7164ae',
    500: '#282a8b',
    950: '#000000',
  },
}

SCSS

$custom: #282a8b;
$custom-light: #7164ae;
$custom-dark: #000000;

JSON

{
  "hex": "#282a8b",
  "rgb": {
    "r": 40,
    "g": 42,
    "b": 139
  },
  "hsl": {
    "h": 238.788,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.35461,
    "c": 0.15642,
    "h": 274.1
  },
  "luminance": 0.03971
}

Semantic roles & 50–950 ramp

primary

#282A8B

secondary

#B6B459

accent

#DC49DF

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090510

muted

#7B7A7F

Preview Lab

Preview with #282A8B

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

Preview Lab → · Contrast checker → · Palette generator →