#283D93#283D93

#283D93 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.8% C 0.144 H 268.6°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#283D93
RGB	rgb(40, 61, 147)
HSL	hsl(228, 57%, 37%)
HSV	hsv(228, 73%, 58%)
CMYK	cmyk(72.8%, 58.5%, 0%, 42.4%)
CIE-LAB	lab(29.14, 22.77, -49.84)
CIE-LCH	lch(29.14, 54.79, 294.56°)
OKLab	oklab(39.78% -0.0036 -0.1437)
OKLCH	oklch(39.78% 0.144 268.6)
XYZ	xyz(7.8085, 5.8944, 28.3243)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D93 #937E28

analogous

#287393 #283D93 #492893

triadic

#283D93 #93283D #3D9328

tetradic

#283D93 #932873 #937E28 #289349

square

#283D93 #932873 #937E28 #289349

split-complementary

#283D93 #934928 #739328

monochromatic

#0E1533 #1B2963 #283D93 #3551C3 #6178D4

Accessibility & contrast

On white

9.64

#283D93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#283D93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D93

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D93	#FFFFFF	#000000	##FFFFFF
##283D93	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A96

Deuteranopia (green-blind)

#004091

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #283d93;
/* rgb */ color: rgb(40, 61, 147);
/* oklch */ color: oklch(39.8% 0.144 268.6);

Tailwind

colors: {
  custom: {
    50: '#7172b3',
    500: '#283d93',
    950: '#000000',
  },
}

SCSS

$custom: #283d93;
$custom-light: #7172b3;
$custom-dark: #000000;

JSON

{
  "hex": "#283d93",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 147
  },
  "hsl": {
    "h": 228.224,
    "s": 57.219,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39781,
    "c": 0.1437,
    "h": 268.6
  },
  "luminance": 0.05895
}

Semantic roles & 50–950 ramp

primary

#283D93

secondary

#BAA85D

accent

#C247E0

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283D93

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

Preview Lab → · Contrast checker → · Palette generator →