#282F7B#282F7B

#282F7B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.9% C 0.128 H 273.7°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#282F7B
RGB	rgb(40, 47, 123)
HSL	hsl(235, 51%, 32%)
HSV	hsv(235, 67%, 48%)
CMYK	cmyk(67.5%, 61.8%, 0%, 51.8%)
CIE-LAB	lab(23.38, 23.23, -44.25)
CIE-LCH	lch(23.38, 49.98, 297.70°)
OKLab	oklab(34.87% 0.0083 -0.1274)
OKLCH	oklch(34.87% 0.128 273.7)
XYZ	xyz(5.4656, 3.9137, 19.2024)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282F7B #7B7428

analogous

#28597B #282F7B #4B287B

triadic

#282F7B #7B282F #2F7B28

tetradic

#282F7B #7B2859 #7B7428 #287B4B

square

#282F7B #7B2859 #7B7428 #287B4B

split-complementary

#282F7B #7B4B28 #597B28

monochromatic

#0A0C1F #191D4D #282F7B #3741A9 #565FC8

Accessibility & contrast

On white

11.78

#282F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#282F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282F7B

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282F7B	#FFFFFF	#000000	##FFFFFF
##282F7B	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7E

Deuteranopia (green-blind)

#003479

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #282f7b;
/* rgb */ color: rgb(40, 47, 123);
/* oklch */ color: oklch(34.9% 0.128 273.7);

Tailwind

colors: {
  custom: {
    50: '#6d67a2',
    500: '#282f7b',
    950: '#000000',
  },
}

SCSS

$custom: #282f7b;
$custom-light: #6d67a2;
$custom-dark: #000000;

JSON

{
  "hex": "#282f7b",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 123
  },
  "hsl": {
    "h": 234.94,
    "s": 50.92,
    "l": 31.961
  },
  "oklch": {
    "l": 0.34874,
    "c": 0.12769,
    "h": 273.7
  },
  "luminance": 0.03914
}

Semantic roles & 50–950 ramp

primary

#282F7B

secondary

#ADA552

accent

#CF4DDA

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#08060F

muted

#7A7A7F

Preview Lab

Preview with #282F7B

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

Preview Lab → · Contrast checker → · Palette generator →