#283474#283474

#283474 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.3% C 0.110 H 271.6°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#283474
RGB	rgb(40, 52, 116)
HSL	hsl(231, 49%, 31%)
HSV	hsv(231, 66%, 45%)
CMYK	cmyk(65.5%, 55.2%, 0%, 54.5%)
CIE-LAB	lab(24.22, 17.12, -38.45)
CIE-LCH	lch(24.22, 42.09, 294.00°)
OKLab	oklab(35.32% 0.0031 -0.1103)
OKLCH	oklch(35.32% 0.11 271.6)
XYZ	xyz(5.2544, 4.1676, 17.0471)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283474 #746828

analogous

#285A74 #283474 #422874

triadic

#283474 #742834 #347428

tetradic

#283474 #74285A #746828 #287442

square

#283474 #74285A #746828 #287442

split-complementary

#283474 #744228 #5A7428

monochromatic

#090B19 #182046 #283474 #3848A2 #5365C4

Accessibility & contrast

On white

11.45

#283474 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#283474 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283474

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283474	#FFFFFF	#000000	##FFFFFF
##283474	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C3D76

Deuteranopia (green-blind)

#003673

Tritanopia (blue-blind)

#00434E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283474;
/* rgb */ color: rgb(40, 52, 116);
/* oklch */ color: oklch(35.3% 0.110 271.6);

Tailwind

colors: {
  custom: {
    50: '#6b6b9c',
    500: '#283474',
    950: '#000000',
  },
}

SCSS

$custom: #283474;
$custom-light: #6b6b9c;
$custom-dark: #000000;

JSON

{
  "hex": "#283474",
  "rgb": {
    "r": 40,
    "g": 52,
    "b": 116
  },
  "hsl": {
    "h": 230.526,
    "s": 48.718,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35321,
    "c": 0.11034,
    "h": 271.6
  },
  "luminance": 0.04168
}

Semantic roles & 50–950 ramp

primary

#283474

secondary

#A69952

accent

#C350D8

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #283474

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

Preview Lab → · Contrast checker → · Palette generator →