#281BAD#281BAD

#281BAD is a dark, highly saturated blue. Relative luminance 0.043; OKLCH L 37.2% C 0.212 H 272.9°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#281BAD
RGB	rgb(40, 27, 173)
HSL	hsl(245, 73%, 39%)
HSV	hsv(245, 84%, 68%)
CMYK	cmyk(76.9%, 84.4%, 0%, 32.2%)
CIE-LAB	lab(24.49, 51.75, -73.30)
CIE-LCH	lch(24.49, 89.73, 305.22°)
OKLab	oklab(37.21% 0.0107 -0.212)
OKLCH	oklch(37.21% 0.212 272.9)
XYZ	xyz(8.8073, 4.2512, 39.8834)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281BAD #A0AD1B

analogous

#1B57AD #281BAD #711BAD

triadic

#281BAD #AD281B #1BAD28

tetradic

#281BAD #AD1B57 #A0AD1B #1BAD71

square

#281BAD #AD1B57 #A0AD1B #1BAD71

split-complementary

#281BAD #AD711B #57AD1B

monochromatic

#100A43 #1C1378 #281BAD #3828DD #695DE6

Accessibility & contrast

On white

11.35

#281BAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#281BAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281BAD

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281BAD	#FFFFFF	#000000	##FFFFFF
##281BAD	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041B1

Deuteranopia (green-blind)

#0033AB

Tritanopia (blue-blind)

#004B67

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #281bad;
/* rgb */ color: rgb(40, 27, 173);
/* oklch */ color: oklch(37.2% 0.212 272.9);

Tailwind

colors: {
  custom: {
    50: '#7a5dc7',
    500: '#281bad',
    950: '#000000',
  },
}

SCSS

$custom: #281bad;
$custom-light: #7a5dc7;
$custom-dark: #000000;

JSON

{
  "hex": "#281bad",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 173
  },
  "hsl": {
    "h": 245.342,
    "s": 73,
    "l": 39.216
  },
  "oklch": {
    "l": 0.37208,
    "c": 0.21227,
    "h": 272.9
  },
  "luminance": 0.04252
}

Semantic roles & 50–950 ramp

primary

#281BAD

secondary

#C0CA5A

accent

#F038DF

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #281BAD

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

Preview Lab → · Contrast checker → · Palette generator →