#283258#283258

#283258 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.8% C 0.069 H 271.1°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#283258
RGB	rgb(40, 50, 88)
HSL	hsl(228, 38%, 25%)
HSV	hsv(228, 55%, 35%)
CMYK	cmyk(54.5%, 43.2%, 0%, 65.5%)
CIE-LAB	lab(21.71, 8.06, -24.28)
CIE-LCH	lch(21.71, 25.59, 288.35°)
OKLab	oklab(32.8% 0.0013 -0.0687)
OKLCH	oklch(32.8% 0.069 271.1)
XYZ	xyz(3.7766, 3.4367, 9.6950)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283258 #584E28

analogous

#284A58 #283258 #362858

triadic

#283258 #582832 #325828

tetradic

#283258 #58284A #584E28 #285836

square

#283258 #58284A #584E28 #285836

split-complementary

#283258 #583628 #4A5828

monochromatic

#0A0C15 #151A2E #283258 #3B4A82 #4E62AC

Accessibility & contrast

On white

12.45

#283258 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#283258 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283258

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283258	#FFFFFF	#000000	##FFFFFF
##283258	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#233659

Deuteranopia (green-blind)

#1E3257

Tritanopia (blue-blind)

#133A40

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #283258;
/* rgb */ color: rgb(40, 50, 88);
/* oklch */ color: oklch(32.8% 0.069 271.1);

Tailwind

colors: {
  custom: {
    50: '#656987',
    500: '#283258',
    950: '#000000',
  },
}

SCSS

$custom: #283258;
$custom-light: #656987;
$custom-dark: #000000;

JSON

{
  "hex": "#283258",
  "rgb": {
    "r": 40,
    "g": 50,
    "b": 88
  },
  "hsl": {
    "h": 227.5,
    "s": 37.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.32803,
    "c": 0.06873,
    "h": 271.1
  },
  "luminance": 0.03437
}

Semantic roles & 50–950 ramp

primary

#283258

secondary

#8B7F51

accent

#B55ACD

background

#F6F6F8

surface

#EBEBEF

border

#C6C6CA

text

#06060B

muted

#7A7A7C

Preview Lab

Preview with #283258

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

Preview Lab → · Contrast checker → · Palette generator →