#283A97#283A97

#283A97 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.5% C 0.153 H 269.6°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#283A97
RGB	rgb(40, 58, 151)
HSL	hsl(230, 58%, 37%)
HSV	hsv(230, 74%, 59%)
CMYK	cmyk(73.5%, 61.6%, 0%, 40.8%)
CIE-LAB	lab(28.67, 26.32, -53.06)
CIE-LCH	lch(28.67, 59.23, 296.39°)
OKLab	oklab(39.53% -0.0011 -0.1532)
OKLCH	oklch(39.53% 0.153 269.6)
XYZ	xyz(7.9721, 5.7108, 29.9543)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283A97 #978528

analogous

#287297 #283A97 #4D2897

triadic

#283A97 #97283A #3A9728

tetradic

#283A97 #972872 #978528 #28974D

square

#283A97 #972872 #978528 #28974D

split-complementary

#283A97 #974D28 #729728

monochromatic

#0E1536 #1B2767 #283A97 #354DC7 #6476D6

Accessibility & contrast

On white

9.80

#283A97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#283A97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283A97

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283A97	#FFFFFF	#000000	##FFFFFF
##283A97	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499A

Deuteranopia (green-blind)

#003F95

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #283a97;
/* rgb */ color: rgb(40, 58, 151);
/* oklch */ color: oklch(39.5% 0.153 269.6);

Tailwind

colors: {
  custom: {
    50: '#7270b6',
    500: '#283a97',
    950: '#000000',
  },
}

SCSS

$custom: #283a97;
$custom-light: #7270b6;
$custom-dark: #000000;

JSON

{
  "hex": "#283a97",
  "rgb": {
    "r": 40,
    "g": 58,
    "b": 151
  },
  "hsl": {
    "h": 230.27,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.39531,
    "c": 0.15316,
    "h": 269.6
  },
  "luminance": 0.05712
}

Semantic roles & 50–950 ramp

primary

#283A97

secondary

#BCAD5F

accent

#C846E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283A97

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

Preview Lab → · Contrast checker → · Palette generator →