#283091#283091

#283091 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.1% C 0.157 H 272.3°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#283091
RGB	rgb(40, 48, 145)
HSL	hsl(235, 57%, 36%)
HSV	hsv(235, 72%, 57%)
CMYK	cmyk(72.4%, 66.9%, 0%, 43.1%)
CIE-LAB	lab(25.59, 30.73, -54.41)
CIE-LCH	lch(25.59, 62.49, 299.46°)
OKLab	oklab(37.1% 0.0064 -0.1572)
OKLCH	oklch(37.1% 0.157 272.3)
XYZ	xyz(7.0411, 4.6087, 27.3011)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283091 #918928

analogous

#286591 #283091 #552891

triadic

#283091 #912830 #309128

tetradic

#283091 #912865 #918928 #289155

square

#283091 #912865 #918928 #289155

split-complementary

#283091 #915528 #659128

monochromatic

#0E1031 #1B2061 #283091 #3540C1 #6069D3

Accessibility & contrast

On white

10.93

#283091 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#283091 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283091

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283091	#FFFFFF	#000000	##FFFFFF
##283091	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004294

Deuteranopia (green-blind)

#00388F

Tritanopia (blue-blind)

#004A5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #283091;
/* rgb */ color: rgb(40, 48, 145);
/* oklch */ color: oklch(37.1% 0.157 272.3);

Tailwind

colors: {
  custom: {
    50: '#7268b2',
    500: '#283091',
    950: '#000000',
  },
}

SCSS

$custom: #283091;
$custom-light: #7268b2;
$custom-dark: #000000;

JSON

{
  "hex": "#283091",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 145
  },
  "hsl": {
    "h": 235.429,
    "s": 56.757,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37099,
    "c": 0.15734,
    "h": 272.3
  },
  "luminance": 0.04609
}

Semantic roles & 50–950 ramp

primary

#283091

secondary

#B9B25C

accent

#D448E0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #283091

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

Preview Lab → · Contrast checker → · Palette generator →