#281A90#281A90

#281A90 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.7% C 0.179 H 276.1°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#281A90
RGB	rgb(40, 26, 144)
HSL	hsl(247, 69%, 33%)
HSV	hsv(247, 82%, 56%)
CMYK	cmyk(72.2%, 81.9%, 0%, 43.5%)
CIE-LAB	lab(20.84, 43.31, -61.62)
CIE-LCH	lch(20.84, 75.32, 305.11°)
OKLab	oklab(33.68% 0.0191 -0.1781)
OKLCH	oklch(33.68% 0.179 276.1)
XYZ	xyz(6.2769, 3.2029, 26.6676)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A90 #82901A

analogous

#1A4790 #281A90 #631A90

triadic

#281A90 #90281A #1A9028

tetradic

#281A90 #901A47 #82901A #1A9063

square

#281A90 #901A47 #82901A #1A9063

split-complementary

#281A90 #90631A #47901A

monochromatic

#0B0728 #1A115C #281A90 #3623C4 #5947DE

Accessibility & contrast

On white

12.80

#281A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#281A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A90

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A90	#FFFFFF	#000000	##FFFFFF
##281A90	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003793

Deuteranopia (green-blind)

#002D8E

Tritanopia (blue-blind)

#003F56

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #281a90;
/* rgb */ color: rgb(40, 26, 144);
/* oklch */ color: oklch(33.7% 0.179 276.1);

Tailwind

colors: {
  custom: {
    50: '#735ab2',
    500: '#281a90',
    950: '#000000',
  },
}

SCSS

$custom: #281a90;
$custom-light: #735ab2;
$custom-dark: #000000;

JSON

{
  "hex": "#281a90",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 144
  },
  "hsl": {
    "h": 247.119,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.33681,
    "c": 0.17913,
    "h": 276.1
  },
  "luminance": 0.03204
}

Semantic roles & 50–950 ramp

primary

#281A90

secondary

#B1BF47

accent

#EC3CD7

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #281A90

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

Preview Lab → · Contrast checker → · Palette generator →