#281E73#281E73

#281E73 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.0% C 0.138 H 280.0°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#281E73
RGB	rgb(40, 30, 115)
HSL	hsl(247, 59%, 28%)
HSV	hsv(247, 74%, 45%)
CMYK	cmyk(65.2%, 73.9%, 0%, 54.9%)
CIE-LAB	lab(18.44, 31.53, -47.22)
CIE-LCH	lch(18.44, 56.78, 303.73°)
OKLab	oklab(31.05% 0.0239 -0.1362)
OKLCH	oklch(31.05% 0.138 280)
XYZ	xyz(4.4329, 2.6171, 16.4879)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281E73 #69731E

analogous

#1E3E73 #281E73 #521E73

triadic

#281E73 #73281E #1E7328

tetradic

#281E73 #731E3E #69731E #1E7352

square

#281E73 #731E3E #69731E #1E7352

split-complementary

#281E73 #73521E #3E731E

monochromatic

#080618 #171142 #281E73 #392BA4 #4F3FCD

Accessibility & contrast

On white

13.78

#281E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#281E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281E73

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281E73	#FFFFFF	#000000	##FFFFFF
##281E73	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003076

Deuteranopia (green-blind)

#002A71

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #281e73;
/* rgb */ color: rgb(40, 30, 115);
/* oklch */ color: oklch(31.0% 0.138 280.0);

Tailwind

colors: {
  custom: {
    50: '#6c5b9c',
    500: '#281e73',
    950: '#000000',
  },
}

SCSS

$custom: #281e73;
$custom-light: #6c5b9c;
$custom-dark: #000000;

JSON

{
  "hex": "#281e73",
  "rgb": {
    "r": 40,
    "g": 30,
    "b": 115
  },
  "hsl": {
    "h": 247.059,
    "s": 58.621,
    "l": 28.431
  },
  "oklch": {
    "l": 0.31047,
    "c": 0.13828,
    "h": 280
  },
  "luminance": 0.02617
}

Semantic roles & 50–950 ramp

primary

#281E73

secondary

#9CA746

accent

#E246CF

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040E

muted

#7A797E

Preview Lab

Preview with #281E73

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

Preview Lab → · Contrast checker → · Palette generator →