#283159#283159

#283159 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.6% C 0.072 H 272.3°. Best body text is #FFFFFF at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#283159
RGB	rgb(40, 49, 89)
HSL	hsl(229, 38%, 25%)
HSV	hsv(229, 55%, 35%)
CMYK	cmyk(55.1%, 44.9%, 0%, 65.1%)
CIE-LAB	lab(21.46, 9.13, -25.34)
CIE-LCH	lch(21.46, 26.93, 289.80°)
OKLab	oklab(32.63% 0.0029 -0.0718)
OKLCH	oklch(32.63% 0.072 272.3)
XYZ	xyz(3.7760, 3.3688, 9.9005)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283159 #595028

analogous

#284959 #283159 #382859

triadic

#283159 #592831 #315928

tetradic

#283159 #592849 #595028 #285938

square

#283159 #592849 #595028 #285938

split-complementary

#283159 #593828 #495928

monochromatic

#090C15 #151A2F #283159 #3B4883 #4E5FAD

Accessibility & contrast

On white

12.55

#283159 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#283159 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283159

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283159	#FFFFFF	#000000	##FFFFFF
##283159	1.00	12.55	1.67	12.55
#FFFFFF	12.55	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21365B

Deuteranopia (green-blind)

#1C3258

Tritanopia (blue-blind)

#133A40

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #283159;
/* rgb */ color: rgb(40, 49, 89);
/* oklch */ color: oklch(32.6% 0.072 272.3);

Tailwind

colors: {
  custom: {
    50: '#666888',
    500: '#283159',
    950: '#000000',
  },
}

SCSS

$custom: #283159;
$custom-light: #666888;
$custom-dark: #000000;

JSON

{
  "hex": "#283159",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 89
  },
  "hsl": {
    "h": 228.98,
    "s": 37.984,
    "l": 25.294
  },
  "oklch": {
    "l": 0.32631,
    "c": 0.07188,
    "h": 272.3
  },
  "luminance": 0.03369
}

Semantic roles & 50–950 ramp

primary

#283159

secondary

#8C8151

accent

#B95ACE

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06060B

muted

#7A7A7C

Preview Lab

Preview with #283159

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

Preview Lab → · Contrast checker → · Palette generator →