#283479#283479

#283479 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.7% C 0.118 H 271.7°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#283479
RGB	rgb(40, 52, 121)
HSL	hsl(231, 50%, 32%)
HSV	hsv(231, 67%, 47%)
CMYK	cmyk(66.9%, 57%, 0%, 52.5%)
CIE-LAB	lab(24.60, 19.02, -41.01)
CIE-LCH	lch(24.60, 45.21, 294.88°)
OKLab	oklab(35.73% 0.0035 -0.1178)
OKLCH	oklch(35.73% 0.118 271.7)
XYZ	xyz(5.5531, 4.2871, 18.6203)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283479 #796D28

analogous

#285D79 #283479 #452879

triadic

#283479 #792834 #347928

tetradic

#283479 #79285D #796D28 #287945

square

#283479 #79285D #796D28 #287945

split-complementary

#283479 #794528 #5D7928

monochromatic

#0A0C1D #19204B #283479 #3748A7 #5566C7

Accessibility & contrast

On white

11.30

#283479 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#283479 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283479

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283479	#FFFFFF	#000000	##FFFFFF
##283479	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#013E7B

Deuteranopia (green-blind)

#003778

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283479;
/* rgb */ color: rgb(40, 52, 121);
/* oklch */ color: oklch(35.7% 0.118 271.7);

Tailwind

colors: {
  custom: {
    50: '#6c6ba0',
    500: '#283479',
    950: '#000000',
  },
}

SCSS

$custom: #283479;
$custom-light: #6c6ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#283479",
  "rgb": {
    "r": 40,
    "g": 52,
    "b": 121
  },
  "hsl": {
    "h": 231.111,
    "s": 50.311,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35729,
    "c": 0.11789,
    "h": 271.7
  },
  "luminance": 0.04288
}

Semantic roles & 50–950 ramp

primary

#283479

secondary

#AB9E52

accent

#C54EDA

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #283479

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

Preview Lab → · Contrast checker → · Palette generator →