#283C96#283C96

#283C96 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.8% C 0.149 H 269.0°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#283C96
RGB	rgb(40, 60, 150)
HSL	hsl(229, 58%, 37%)
HSV	hsv(229, 73%, 59%)
CMYK	cmyk(73.3%, 60%, 0%, 41.2%)
CIE-LAB	lab(29.12, 24.59, -51.72)
CIE-LCH	lch(29.12, 57.27, 295.43°)
OKLab	oklab(39.84% -0.0027 -0.1492)
OKLCH	oklch(39.84% 0.149 269)
XYZ	xyz(7.9941, 5.8840, 29.5627)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283C96 #968228

analogous

#287396 #283C96 #4B2896

triadic

#283C96 #96283C #3C9628

tetradic

#283C96 #962873 #968228 #28964B

square

#283C96 #962873 #968228 #28964B

split-complementary

#283C96 #964B28 #739628

monochromatic

#0E1535 #1B2966 #283C96 #354FC6 #6378D5

Accessibility & contrast

On white

9.65

#283C96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#283C96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283C96

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283C96	#FFFFFF	#000000	##FFFFFF
##283C96	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A99

Deuteranopia (green-blind)

#004094

Tritanopia (blue-blind)

#005263

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #283c96;
/* rgb */ color: rgb(40, 60, 150);
/* oklch */ color: oklch(39.8% 0.149 269.0);

Tailwind

colors: {
  custom: {
    50: '#7271b6',
    500: '#283c96',
    950: '#000000',
  },
}

SCSS

$custom: #283c96;
$custom-light: #7271b6;
$custom-dark: #000000;

JSON

{
  "hex": "#283c96",
  "rgb": {
    "r": 40,
    "g": 60,
    "b": 150
  },
  "hsl": {
    "h": 229.091,
    "s": 57.895,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39837,
    "c": 0.14922,
    "h": 269
  },
  "luminance": 0.05885
}

Semantic roles & 50–950 ramp

primary

#283C96

secondary

#BBAA5F

accent

#C547E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283C96

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

Preview Lab → · Contrast checker → · Palette generator →