#282D9B#282D9B

#282D9B is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.6% C 0.174 H 272.4°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#282D9B
RGB	rgb(40, 45, 155)
HSL	hsl(237, 59%, 38%)
HSV	hsv(237, 74%, 61%)
CMYK	cmyk(74.2%, 71%, 0%, 39.2%)
CIE-LAB	lab(25.84, 36.25, -60.14)
CIE-LCH	lch(25.84, 70.22, 301.08°)
OKLab	oklab(37.58% 0.0072 -0.1739)
OKLCH	oklch(37.58% 0.174 272.4)
XYZ	xyz(7.7279, 4.6937, 31.5027)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282D9B #9B9628

analogous

#28669B #282D9B #5C289B

triadic

#282D9B #9B282D #2D9B28

tetradic

#282D9B #9B2866 #9B9628 #289B5C

square

#282D9B #9B2866 #9B9628 #289B5C

split-complementary

#282D9B #9B5C28 #669B28

monochromatic

#0F113A #1B1F6A #282D9B #353CCB #666BD7

Accessibility & contrast

On white

10.83

#282D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#282D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282D9B

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282D9B	#FFFFFF	#000000	##FFFFFF
##282D9B	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439E

Deuteranopia (green-blind)

#003899

Tritanopia (blue-blind)

#004B60

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #282d9b;
/* rgb */ color: rgb(40, 45, 155);
/* oklch */ color: oklch(37.6% 0.174 272.4);

Tailwind

colors: {
  custom: {
    50: '#7467ba',
    500: '#282d9b',
    950: '#000000',
  },
}

SCSS

$custom: #282d9b;
$custom-light: #7467ba;
$custom-dark: #000000;

JSON

{
  "hex": "#282d9b",
  "rgb": {
    "r": 40,
    "g": 45,
    "b": 155
  },
  "hsl": {
    "h": 237.391,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.37576,
    "c": 0.1741,
    "h": 272.4
  },
  "luminance": 0.04694
}

Semantic roles & 50–950 ramp

primary

#282D9B

secondary

#BDB961

accent

#DB46E2

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #282D9B

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

Preview Lab → · Contrast checker → · Palette generator →