#283879#283879

#283879 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.6% C 0.112 H 269.7°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#283879
RGB	rgb(40, 56, 121)
HSL	hsl(228, 50%, 32%)
HSV	hsv(228, 67%, 47%)
CMYK	cmyk(66.9%, 53.7%, 0%, 52.5%)
CIE-LAB	lab(25.74, 16.24, -39.17)
CIE-LCH	lch(25.74, 42.40, 292.52°)
OKLab	oklab(36.59% -0.0006 -0.1123)
OKLCH	oklch(36.59% 0.112 269.7)
XYZ	xyz(5.7393, 4.6594, 18.6824)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283879 #796928

analogous

#286179 #283879 #412879

triadic

#283879 #792838 #387928

tetradic

#283879 #792861 #796928 #287941

square

#283879 #792861 #796928 #287941

split-complementary

#283879 #794128 #617928

monochromatic

#0A0D1D #19234B #283879 #374DA7 #556BC7

Accessibility & contrast

On white

10.87

#283879 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#283879 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283879

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283879	#FFFFFF	#000000	##FFFFFF
##283879	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11417B

Deuteranopia (green-blind)

#003978

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #283879;
/* rgb */ color: rgb(40, 56, 121);
/* oklch */ color: oklch(36.6% 0.112 269.7);

Tailwind

colors: {
  custom: {
    50: '#6b6ea0',
    500: '#283879',
    950: '#000000',
  },
}

SCSS

$custom: #283879;
$custom-light: #6b6ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#283879",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 121
  },
  "hsl": {
    "h": 228.148,
    "s": 50.311,
    "l": 31.569
  },
  "oklch": {
    "l": 0.36589,
    "c": 0.11235,
    "h": 269.7
  },
  "luminance": 0.0466
}

Semantic roles & 50–950 ramp

primary

#283879

secondary

#AB9952

accent

#BE4EDA

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #283879

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

Preview Lab → · Contrast checker → · Palette generator →