#283374#283374

#283374 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.1% C 0.112 H 272.1°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#283374
RGB	rgb(40, 51, 116)
HSL	hsl(231, 49%, 31%)
HSV	hsv(231, 66%, 45%)
CMYK	cmyk(65.5%, 56%, 0%, 54.5%)
CIE-LAB	lab(23.93, 17.82, -38.91)
CIE-LCH	lch(23.93, 42.80, 294.60°)
OKLab	oklab(35.11% 0.0042 -0.1117)
OKLCH	oklch(35.11% 0.112 272.1)
XYZ	xyz(5.2102, 4.0793, 17.0324)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283374 #746928

analogous

#285974 #283374 #432874

triadic

#283374 #742833 #337428

tetradic

#283374 #742859 #746928 #287443

square

#283374 #742859 #746928 #287443

split-complementary

#283374 #744328 #597428

monochromatic

#090B19 #181F46 #283374 #3847A2 #5363C4

Accessibility & contrast

On white

11.56

#283374 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#283374 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283374

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283374	#FFFFFF	#000000	##FFFFFF
##283374	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#083C76

Deuteranopia (green-blind)

#003673

Tritanopia (blue-blind)

#00424E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283374;
/* rgb */ color: rgb(40, 51, 116);
/* oklch */ color: oklch(35.1% 0.112 272.1);

Tailwind

colors: {
  custom: {
    50: '#6b6a9c',
    500: '#283374',
    950: '#000000',
  },
}

SCSS

$custom: #283374;
$custom-light: #6b6a9c;
$custom-dark: #000000;

JSON

{
  "hex": "#283374",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 116
  },
  "hsl": {
    "h": 231.316,
    "s": 48.718,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35106,
    "c": 0.11175,
    "h": 272.1
  },
  "luminance": 0.0408
}

Semantic roles & 50–950 ramp

primary

#283374

secondary

#A69A52

accent

#C450D8

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #283374

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

Preview Lab → · Contrast checker → · Palette generator →