#283D97#283D97

#283D97 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.149 H 268.7°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#283D97
RGB	rgb(40, 61, 151)
HSL	hsl(229, 58%, 37%)
HSV	hsv(229, 74%, 59%)
CMYK	cmyk(73.5%, 59.6%, 0%, 40.8%)
CIE-LAB	lab(29.47, 24.30, -51.76)
CIE-LCH	lch(29.47, 57.18, 295.15°)
OKLab	oklab(40.12% -0.0034 -0.1493)
OKLCH	oklch(40.12% 0.149 268.7)
XYZ	xyz(8.1278, 6.0221, 30.0062)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D97 #978228

analogous

#287497 #283D97 #4B2897

triadic

#283D97 #97283D #3D9728

tetradic

#283D97 #972874 #978228 #28974B

square

#283D97 #972874 #978228 #28974B

split-complementary

#283D97 #974B28 #749728

monochromatic

#0E1636 #1B2967 #283D97 #3551C7 #6479D6

Accessibility & contrast

On white

9.53

#283D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#283D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D97

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D97	#FFFFFF	#000000	##FFFFFF
##283D97	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9A

Deuteranopia (green-blind)

#004095

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #283d97;
/* rgb */ color: rgb(40, 61, 151);
/* oklch */ color: oklch(40.1% 0.149 268.7);

Tailwind

colors: {
  custom: {
    50: '#7272b6',
    500: '#283d97',
    950: '#000000',
  },
}

SCSS

$custom: #283d97;
$custom-light: #7272b6;
$custom-dark: #000000;

JSON

{
  "hex": "#283d97",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 151
  },
  "hsl": {
    "h": 228.649,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40124,
    "c": 0.14934,
    "h": 268.7
  },
  "luminance": 0.06023
}

Semantic roles & 50–950 ramp

primary

#283D97

secondary

#BCAA5F

accent

#C446E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283D97

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

Preview Lab → · Contrast checker → · Palette generator →