#283B92#283B92

#283B92 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.145 H 269.2°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#283B92
RGB	rgb(40, 59, 146)
HSL	hsl(229, 57%, 36%)
HSV	hsv(229, 73%, 57%)
CMYK	cmyk(72.6%, 59.6%, 0%, 42.7%)
CIE-LAB	lab(28.52, 23.75, -50.24)
CIE-LCH	lch(28.52, 55.57, 295.30°)
OKLab	oklab(39.29% -0.002 -0.1449)
OKLCH	oklch(39.29% 0.145 269.2)
XYZ	xyz(7.6256, 5.6536, 27.8779)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283B92 #927F28

analogous

#287092 #283B92 #4A2892

triadic

#283B92 #92283B #3B9228

tetradic

#283B92 #922870 #927F28 #28924A

square

#283B92 #922870 #927F28 #28924A

split-complementary

#283B92 #924A28 #709228

monochromatic

#0E1432 #1B2862 #283B92 #354EC2 #6175D4

Accessibility & contrast

On white

9.86

#283B92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#283B92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283B92

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283B92	#FFFFFF	#000000	##FFFFFF
##283B92	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004895

Deuteranopia (green-blind)

#003F90

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #283b92;
/* rgb */ color: rgb(40, 59, 146);
/* oklch */ color: oklch(39.3% 0.145 269.2);

Tailwind

colors: {
  custom: {
    50: '#7170b3',
    500: '#283b92',
    950: '#000000',
  },
}

SCSS

$custom: #283b92;
$custom-light: #7170b3;
$custom-dark: #000000;

JSON

{
  "hex": "#283b92",
  "rgb": {
    "r": 40,
    "g": 59,
    "b": 146
  },
  "hsl": {
    "h": 229.245,
    "s": 56.989,
    "l": 36.471
  },
  "oklch": {
    "l": 0.3929,
    "c": 0.14487,
    "h": 269.2
  },
  "luminance": 0.05654
}

Semantic roles & 50–950 ramp

primary

#283B92

secondary

#B9A95D

accent

#C548E0

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283B92

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

Preview Lab → · Contrast checker → · Palette generator →