#281DAA#281DAA

#281DAA is a dark, highly saturated blue. Relative luminance 0.042; OKLCH L 37.1% C 0.207 H 273.0°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#281DAA
RGB	rgb(40, 29, 170)
HSL	hsl(245, 71%, 39%)
HSV	hsv(245, 83%, 67%)
CMYK	cmyk(76.5%, 82.9%, 0%, 33.3%)
CIE-LAB	lab(24.42, 49.96, -71.60)
CIE-LCH	lch(24.42, 87.30, 304.91°)
OKLab	oklab(37.06% 0.011 -0.2071)
OKLCH	oklch(37.06% 0.207 273)
XYZ	xyz(8.5677, 4.2312, 38.3876)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281DAA #9FAA1D

analogous

#1D59AA #281DAA #6F1DAA

triadic

#281DAA #AA281D #1DAA28

tetradic

#281DAA #AA1D59 #9FAA1D #1DAA6F

square

#281DAA #AA1D59 #9FAA1D #1DAA6F

split-complementary

#281DAA #AA6F1D #59AA1D

monochromatic

#0F0B41 #1C1476 #281DAA #372ADB #685EE4

Accessibility & contrast

On white

11.37

#281DAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#281DAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281DAA

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281DAA	#FFFFFF	#000000	##FFFFFF
##281DAA	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AE

Deuteranopia (green-blind)

#0033A8

Tritanopia (blue-blind)

#004A65

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #281daa;
/* rgb */ color: rgb(40, 29, 170);
/* oklch */ color: oklch(37.1% 0.207 273.0);

Tailwind

colors: {
  custom: {
    50: '#795ec5',
    500: '#281daa',
    950: '#000000',
  },
}

SCSS

$custom: #281daa;
$custom-light: #795ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#281daa",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 170
  },
  "hsl": {
    "h": 244.681,
    "s": 70.854,
    "l": 39.02
  },
  "oklch": {
    "l": 0.37059,
    "c": 0.20739,
    "h": 273
  },
  "luminance": 0.04232
}

Semantic roles & 50–950 ramp

primary

#281DAA

secondary

#BFC85B

accent

#EE3AE0

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #281DAA

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

Preview Lab → · Contrast checker → · Palette generator →