#281D78#281D78

#281D78 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.4% C 0.146 H 279.3°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#281D78
RGB	rgb(40, 29, 120)
HSL	hsl(247, 61%, 29%)
HSV	hsv(247, 76%, 47%)
CMYK	cmyk(66.7%, 75.8%, 0%, 52.9%)
CIE-LAB	lab(18.74, 33.84, -49.95)
CIE-LCH	lch(18.74, 60.33, 304.12°)
OKLab	oklab(31.41% 0.0236 -0.1442)
OKLCH	oklch(31.41% 0.146 279.3)
XYZ	xyz(4.7035, 2.6855, 18.0362)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D78 #6D781D

analogous

#1D4078 #281D78 #561D78

triadic

#281D78 #78281D #1D7828

tetradic

#281D78 #781D40 #6D781D #1D7856

square

#281D78 #781D40 #6D781D #1D7856

split-complementary

#281D78 #78561D #40781D

monochromatic

#080619 #181147 #281D78 #3829A9 #503FD1

Accessibility & contrast

On white

13.66

#281D78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#281D78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D78

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D78	#FFFFFF	#000000	##FFFFFF
##281D78	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317B

Deuteranopia (green-blind)

#002A76

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281d78;
/* rgb */ color: rgb(40, 29, 120);
/* oklch */ color: oklch(31.4% 0.146 279.3);

Tailwind

colors: {
  custom: {
    50: '#6e5ba0',
    500: '#281d78',
    950: '#000000',
  },
}

SCSS

$custom: #281d78;
$custom-light: #6e5ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#281d78",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 120
  },
  "hsl": {
    "h": 247.253,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31414,
    "c": 0.14608,
    "h": 279.3
  },
  "luminance": 0.02686
}

Semantic roles & 50–950 ramp

primary

#281D78

secondary

#9FAC45

accent

#E444D1

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #281D78

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

Preview Lab → · Contrast checker → · Palette generator →