#281DA6#281DA6

#281DA6 is a dark, highly saturated blue. Relative luminance 0.041; OKLCH L 36.6% C 0.203 H 273.4°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#281DA6
RGB	rgb(40, 29, 166)
HSL	hsl(245, 70%, 38%)
HSV	hsv(245, 83%, 65%)
CMYK	cmyk(75.9%, 82.5%, 0%, 34.9%)
CIE-LAB	lab(23.94, 48.73, -69.97)
CIE-LCH	lch(23.94, 85.27, 304.85°)
OKLab	oklab(36.59% 0.012 -0.2024)
OKLCH	oklch(36.59% 0.203 273.4)
XYZ	xyz(8.1951, 4.0822, 36.4250)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281DA6 #9BA61D

analogous

#1D56A6 #281DA6 #6D1DA6

triadic

#281DA6 #A6281D #1DA628

tetradic

#281DA6 #A61D56 #9BA61D #1DA66D

square

#281DA6 #A61D56 #9BA61D #1DA66D

split-complementary

#281DA6 #A66D1D #56A61D

monochromatic

#0F0B3E #1B1472 #281DA6 #3527D9 #665BE2

Accessibility & contrast

On white

11.56

#281DA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#281DA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281DA6

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281DA6	#FFFFFF	#000000	##FFFFFF
##281DA6	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FAA

Deuteranopia (green-blind)

#0032A4

Tritanopia (blue-blind)

#004963

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #281da6;
/* rgb */ color: rgb(40, 29, 166);
/* oklch */ color: oklch(36.6% 0.203 273.4);

Tailwind

colors: {
  custom: {
    50: '#795ec2',
    500: '#281da6',
    950: '#000000',
  },
}

SCSS

$custom: #281da6;
$custom-light: #795ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#281da6",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 166
  },
  "hsl": {
    "h": 244.818,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.36588,
    "c": 0.20276,
    "h": 273.4
  },
  "luminance": 0.04083
}

Semantic roles & 50–950 ramp

primary

#281DA6

secondary

#BDC659

accent

#ED3BDF

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #281DA6

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

Preview Lab → · Contrast checker → · Palette generator →