#281CA1#281CA1

#281CA1 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.9% C 0.198 H 274.0°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#281CA1
RGB	rgb(40, 28, 161)
HSL	hsl(245, 70%, 37%)
HSV	hsv(245, 83%, 63%)
CMYK	cmyk(75.2%, 82.6%, 0%, 36.9%)
CIE-LAB	lab(23.18, 47.66, -68.19)
CIE-LCH	lch(23.18, 83.20, 304.95°)
OKLab	oklab(35.89% 0.0137 -0.1972)
OKLCH	oklch(35.89% 0.198 274)
XYZ	xyz(7.7212, 3.8540, 34.0483)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281CA1 #95A11C

analogous

#1C52A1 #281CA1 #6B1CA1

triadic

#281CA1 #A1281C #1CA128

tetradic

#281CA1 #A11C52 #95A11C #1CA16B

square

#281CA1 #A11C52 #95A11C #1CA16B

split-complementary

#281CA1 #A16B1C #52A11C

monochromatic

#0E0A39 #1B136D #281CA1 #3525D5 #6256E2

Accessibility & contrast

On white

11.86

#281CA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#281CA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281CA1

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281CA1	#FFFFFF	#000000	##FFFFFF
##281CA1	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA5

Deuteranopia (green-blind)

#00319F

Tritanopia (blue-blind)

#004660

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #281ca1;
/* rgb */ color: rgb(40, 28, 161);
/* oklch */ color: oklch(35.9% 0.198 274.0);

Tailwind

colors: {
  custom: {
    50: '#775dbe',
    500: '#281ca1',
    950: '#000000',
  },
}

SCSS

$custom: #281ca1;
$custom-light: #775dbe;
$custom-dark: #000000;

JSON

{
  "hex": "#281ca1",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 161
  },
  "hsl": {
    "h": 245.414,
    "s": 70.37,
    "l": 37.059
  },
  "oklch": {
    "l": 0.35891,
    "c": 0.1977,
    "h": 274
  },
  "luminance": 0.03855
}

Semantic roles & 50–950 ramp

primary

#281CA1

secondary

#BBC554

accent

#ED3BDD

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281CA1

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

Preview Lab → · Contrast checker → · Palette generator →