#283370#283370

#283370 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.8% C 0.106 H 272.1°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#283370
RGB	rgb(40, 51, 112)
HSL	hsl(231, 47%, 30%)
HSV	hsv(231, 64%, 44%)
CMYK	cmyk(64.3%, 54.5%, 0%, 56.1%)
CIE-LAB	lab(23.63, 16.30, -36.84)
CIE-LCH	lch(23.63, 40.29, 293.87°)
OKLab	oklab(34.78% 0.0039 -0.1056)
OKLCH	oklch(34.78% 0.106 272.1)
XYZ	xyz(4.9826, 3.9882, 15.8333)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283370 #706528

analogous

#285770 #283370 #412870

triadic

#283370 #702833 #337028

tetradic

#283370 #702857 #706528 #287041

square

#283370 #702857 #706528 #287041

split-complementary

#283370 #704128 #577028

monochromatic

#080A17 #181E43 #283370 #38489D #5162C1

Accessibility & contrast

On white

11.68

#283370 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#283370 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283370

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283370	#FFFFFF	#000000	##FFFFFF
##283370	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F3C72

Deuteranopia (green-blind)

#00356F

Tritanopia (blue-blind)

#00414C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #283370;
/* rgb */ color: rgb(40, 51, 112);
/* oklch */ color: oklch(34.8% 0.106 272.1);

Tailwind

colors: {
  custom: {
    50: '#6a6a99',
    500: '#283370',
    950: '#000000',
  },
}

SCSS

$custom: #283370;
$custom-light: #6a6a99;
$custom-dark: #000000;

JSON

{
  "hex": "#283370",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 112
  },
  "hsl": {
    "h": 230.833,
    "s": 47.368,
    "l": 29.804
  },
  "oklch": {
    "l": 0.34785,
    "c": 0.10564,
    "h": 272.1
  },
  "luminance": 0.03989
}

Semantic roles & 50–950 ramp

primary

#283370

secondary

#A29651

accent

#C251D7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #283370

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

Preview Lab → · Contrast checker → · Palette generator →