#281C75#281C75

#281C75 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.9% C 0.143 H 280.1°. Best body text is #FFFFFF at 13.88:1 contrast (WCAG AA passes).

Color values

HEX	#281C75
RGB	rgb(40, 28, 117)
HSL	hsl(248, 61%, 28%)
HSV	hsv(248, 76%, 46%)
CMYK	cmyk(65.8%, 76.1%, 0%, 54.1%)
CIE-LAB	lab(18.21, 33.42, -48.88)
CIE-LCH	lch(18.21, 59.21, 304.36°)
OKLab	oklab(30.95% 0.025 -0.141)
OKLCH	oklch(30.95% 0.143 280.1)
XYZ	xyz(4.5002, 2.5656, 17.0842)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C75 #69751C

analogous

#1C3C75 #281C75 #541C75

triadic

#281C75 #75281C #1C7528

tetradic

#281C75 #751C3C #69751C #1C7554

square

#281C75 #751C3C #69751C #1C7554

split-complementary

#281C75 #75541C #3C751C

monochromatic

#080619 #171044 #281C75 #3928A6 #4F3BD0

Accessibility & contrast

On white

13.88

#281C75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#281C75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C75

13.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C75	#FFFFFF	#000000	##FFFFFF
##281C75	1.00	13.88	1.51	13.88
#FFFFFF	13.88	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003078

Deuteranopia (green-blind)

#002973

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #281c75;
/* rgb */ color: rgb(40, 28, 117);
/* oklch */ color: oklch(30.9% 0.143 280.1);

Tailwind

colors: {
  custom: {
    50: '#6d5a9e',
    500: '#281c75',
    950: '#000000',
  },
}

SCSS

$custom: #281c75;
$custom-light: #6d5a9e;
$custom-dark: #000000;

JSON

{
  "hex": "#281c75",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 117
  },
  "hsl": {
    "h": 248.09,
    "s": 61.379,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30947,
    "c": 0.14325,
    "h": 280.1
  },
  "luminance": 0.02566
}

Semantic roles & 50–950 ramp

primary

#281C75

secondary

#9CA944

accent

#E443CF

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #281C75

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

Preview Lab → · Contrast checker → · Palette generator →