#282FA1#282FA1

#282FA1 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.5% C 0.180 H 271.7°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#282FA1
RGB	rgb(40, 47, 161)
HSL	hsl(237, 60%, 39%)
HSV	hsv(237, 75%, 63%)
CMYK	cmyk(75.2%, 70.8%, 0%, 36.9%)
CIE-LAB	lab(26.90, 37.13, -62.06)
CIE-LCH	lch(26.90, 72.32, 300.90°)
OKLab	oklab(38.52% 0.0053 -0.1796)
OKLCH	oklch(38.52% 0.18 271.7)
XYZ	xyz(8.3224, 5.0565, 34.2487)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282FA1 #A19A28

analogous

#286CA1 #282FA1 #5E28A1

triadic

#282FA1 #A1282F #2FA128

tetradic

#282FA1 #A1286C #A19A28 #28A15E

square

#282FA1 #A1286C #A19A28 #28A15E

split-complementary

#282FA1 #A15E28 #6CA128

monochromatic

#10123F #1C2170 #282FA1 #3941CE #6A70DA

Accessibility & contrast

On white

10.44

#282FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#282FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282FA1

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282FA1	#FFFFFF	#000000	##FFFFFF
##282FA1	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A4

Deuteranopia (green-blind)

#003A9F

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #282fa1;
/* rgb */ color: rgb(40, 47, 161);
/* oklch */ color: oklch(38.5% 0.180 271.7);

Tailwind

colors: {
  custom: {
    50: '#7668be',
    500: '#282fa1',
    950: '#000000',
  },
}

SCSS

$custom: #282fa1;
$custom-light: #7668be;
$custom-dark: #000000;

JSON

{
  "hex": "#282fa1",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 161
  },
  "hsl": {
    "h": 236.529,
    "s": 60.199,
    "l": 39.412
  },
  "oklch": {
    "l": 0.38515,
    "c": 0.17965,
    "h": 271.7
  },
  "luminance": 0.05057
}

Semantic roles & 50–950 ramp

primary

#282FA1

secondary

#C0BB65

accent

#DA44E3

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #282FA1

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

Preview Lab → · Contrast checker → · Palette generator →