#281AA0#281AA0

#281AA0 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.6% C 0.198 H 274.2°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#281AA0
RGB	rgb(40, 26, 160)
HSL	hsl(246, 72%, 36%)
HSV	hsv(246, 84%, 63%)
CMYK	cmyk(75%, 83.8%, 0%, 37.3%)
CIE-LAB	lab(22.75, 48.27, -68.31)
CIE-LCH	lch(22.75, 83.64, 305.25°)
OKLab	oklab(35.56% 0.0146 -0.1975)
OKLCH	oklch(35.56% 0.198 274.2)
XYZ	xyz(7.5875, 3.7272, 33.5704)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281AA0 #92A01A

analogous

#1A4FA0 #281AA0 #6B1AA0

triadic

#281AA0 #A0281A #1AA028

tetradic

#281AA0 #A01A4F #92A01A #1AA06B

square

#281AA0 #A01A4F #92A01A #1AA06B

split-complementary

#281AA0 #A06B1A #4FA01A

monochromatic

#0E0937 #1B116B #281AA0 #3523D5 #6152E3

Accessibility & contrast

On white

12.03

#281AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#281AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281AA0

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281AA0	#FFFFFF	#000000	##FFFFFF
##281AA0	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA4

Deuteranopia (green-blind)

#00309E

Tritanopia (blue-blind)

#00455F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #281aa0;
/* rgb */ color: rgb(40, 26, 160);
/* oklch */ color: oklch(35.6% 0.198 274.2);

Tailwind

colors: {
  custom: {
    50: '#775cbe',
    500: '#281aa0',
    950: '#000000',
  },
}

SCSS

$custom: #281aa0;
$custom-light: #775cbe;
$custom-dark: #000000;

JSON

{
  "hex": "#281aa0",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 160
  },
  "hsl": {
    "h": 246.269,
    "s": 72.043,
    "l": 36.471
  },
  "oklch": {
    "l": 0.35556,
    "c": 0.19805,
    "h": 274.2
  },
  "luminance": 0.03728
}

Semantic roles & 50–950 ramp

primary

#281AA0

secondary

#B9C550

accent

#EF39DC

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281AA0

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

Preview Lab → · Contrast checker → · Palette generator →