#283180#283180

#283180 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.7% C 0.132 H 272.8°. Best body text is #FFFFFF at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#283180
RGB	rgb(40, 49, 128)
HSL	hsl(234, 52%, 33%)
HSV	hsv(234, 69%, 50%)
CMYK	cmyk(68.8%, 61.7%, 0%, 49.8%)
CIE-LAB	lab(24.34, 23.74, -45.86)
CIE-LCH	lch(24.34, 51.64, 297.37°)
OKLab	oklab(35.71% 0.0064 -0.1321)
OKLCH	oklch(35.71% 0.132 272.8)
XYZ	xyz(5.8684, 4.2057, 20.9204)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283180 #807728

analogous

#285D80 #283180 #4B2880

triadic

#283180 #802831 #318028

tetradic

#283180 #80285D #807728 #28804B

square

#283180 #80285D #807728 #28804B

split-complementary

#283180 #804B28 #5D8028

monochromatic

#0B0D23 #191F51 #283180 #3743AF #5863CB

Accessibility & contrast

On white

11.41

#283180 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#283180 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283180

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283180	#FFFFFF	#000000	##FFFFFF
##283180	1.00	11.41	1.84	11.41
#FFFFFF	11.41	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E83

Deuteranopia (green-blind)

#00367E

Tritanopia (blue-blind)

#004553

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283180;
/* rgb */ color: rgb(40, 49, 128);
/* oklch */ color: oklch(35.7% 0.132 272.8);

Tailwind

colors: {
  custom: {
    50: '#6e69a6',
    500: '#283180',
    950: '#000000',
  },
}

SCSS

$custom: #283180;
$custom-light: #6e69a6;
$custom-dark: #000000;

JSON

{
  "hex": "#283180",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 128
  },
  "hsl": {
    "h": 233.864,
    "s": 52.381,
    "l": 32.941
  },
  "oklch": {
    "l": 0.35714,
    "c": 0.13227,
    "h": 272.8
  },
  "luminance": 0.04206
}

Semantic roles & 50–950 ramp

primary

#283180

secondary

#B0A654

accent

#CD4CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #283180

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

Preview Lab → · Contrast checker → · Palette generator →