#282FAF#282FAF

#282FAF is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.0% C 0.197 H 271.0°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#282FAF
RGB	rgb(40, 47, 175)
HSL	hsl(237, 63%, 42%)
HSV	hsv(237, 77%, 69%)
CMYK	cmyk(77.1%, 73.1%, 0%, 31.4%)
CIE-LAB	lab(28.32, 42.02, -68.14)
CIE-LCH	lch(28.32, 80.06, 301.66°)
OKLab	oklab(39.97% 0.0034 -0.1973)
OKLCH	oklch(39.97% 0.197 271)
XYZ	xyz(9.6268, 5.5782, 41.1185)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.75

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282FAF #AFA828

analogous

#2873AF #282FAF #6528AF

triadic

#282FAF #AF282F #2FAF28

tetradic

#282FAF #AF2873 #AFA828 #28AF65

square

#282FAF #AF2873 #AFA828 #28AF65

split-complementary

#282FAF #AF6528 #73AF28

monochromatic

#11144B #1D227D #282FAF #4148D4 #7378DF

Accessibility & contrast

On white

9.93

#282FAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#282FAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282FAF

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282FAF	#FFFFFF	#000000	##FFFFFF
##282FAF	1.00	9.93	2.12	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B3

Deuteranopia (green-blind)

#003CAD

Tritanopia (blue-blind)

#00546C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #282faf;
/* rgb */ color: rgb(40, 47, 175);
/* oklch */ color: oklch(40.0% 0.197 271.0);

Tailwind

colors: {
  custom: {
    50: '#7969c8',
    500: '#282faf',
    950: '#000000',
  },
}

SCSS

$custom: #282faf;
$custom-light: #7969c8;
$custom-dark: #000000;

JSON

{
  "hex": "#282faf",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 175
  },
  "hsl": {
    "h": 236.889,
    "s": 62.791,
    "l": 42.157
  },
  "oklch": {
    "l": 0.39966,
    "c": 0.19733,
    "h": 271
  },
  "luminance": 0.05579
}

Semantic roles & 50–950 ramp

primary

#282FAF

secondary

#C6C16D

accent

#DD42E6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #282FAF

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

Preview Lab → · Contrast checker → · Palette generator →