#283EAD#283EAD

#283EAD is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.178 H 268.6°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#283EAD
RGB	rgb(40, 62, 173)
HSL	hsl(230, 62%, 42%)
HSV	hsv(230, 77%, 68%)
CMYK	cmyk(76.9%, 64.2%, 0%, 32.2%)
CIE-LAB	lab(31.61, 31.92, -61.55)
CIE-LCH	lch(31.61, 69.33, 297.41°)
OKLab	oklab(42.29% -0.0044 -0.178)
OKLCH	oklch(42.29% 0.178 268.6)
XYZ	xyz(10.1379, 6.9124, 40.3270)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283EAD #AD9728

analogous

#2881AD #283EAD #5528AD

triadic

#283EAD #AD283E #3EAD28

tetradic

#283EAD #AD2881 #AD9728 #28AD55

square

#283EAD #AD2881 #AD9728 #28AD55

split-complementary

#283EAD #AD5528 #81AD28

monochromatic

#111A4A #1D2C7B #283EAD #3F58D3 #7183DE

Accessibility & contrast

On white

8.81

#283EAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#283EAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283EAD

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283EAD	#FFFFFF	#000000	##FFFFFF
##283EAD	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B1

Deuteranopia (green-blind)

#0044AB

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #283ead;
/* rgb */ color: rgb(40, 62, 173);
/* oklch */ color: oklch(42.3% 0.178 268.6);

Tailwind

colors: {
  custom: {
    50: '#7773c6',
    500: '#283ead',
    950: '#000000',
  },
}

SCSS

$custom: #283ead;
$custom-light: #7773c6;
$custom-dark: #000000;

JSON

{
  "hex": "#283ead",
  "rgb": {
    "r": 40,
    "g": 62,
    "b": 173
  },
  "hsl": {
    "h": 230.075,
    "s": 62.441,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42292,
    "c": 0.17806,
    "h": 268.6
  },
  "luminance": 0.06913
}

Semantic roles & 50–950 ramp

primary

#283EAD

secondary

#C5B66C

accent

#CB42E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #283EAD

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

Preview Lab → · Contrast checker → · Palette generator →