#281979#281979

#281979 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.0% C 0.152 H 279.9°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#281979
RGB	rgb(40, 25, 121)
HSL	hsl(249, 66%, 29%)
HSV	hsv(249, 79%, 47%)
CMYK	cmyk(66.9%, 79.3%, 0%, 52.5%)
CIE-LAB	lab(18.04, 36.45, -51.74)
CIE-LCH	lch(18.04, 63.29, 305.17°)
OKLab	oklab(30.95% 0.0261 -0.1494)
OKLCH	oklch(30.95% 0.152 279.9)
XYZ	xyz(4.6728, 2.5265, 18.3269)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281979 #6A7919

analogous

#193A79 #281979 #581979

triadic

#281979 #792819 #197928

tetradic

#281979 #79193A #6A7919 #197958

square

#281979 #79193A #6A7919 #197958

split-complementary

#281979 #795819 #3A7919

monochromatic

#080519 #170F46 #281979 #3923AC #5037D6

Accessibility & contrast

On white

13.95

#281979 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#281979 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281979

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281979	#FFFFFF	#000000	##FFFFFF
##281979	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307C

Deuteranopia (green-blind)

#002877

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #281979;
/* rgb */ color: rgb(40, 25, 121);
/* oklch */ color: oklch(31.0% 0.152 279.9);

Tailwind

colors: {
  custom: {
    50: '#6e58a1',
    500: '#281979',
    950: '#000000',
  },
}

SCSS

$custom: #281979;
$custom-light: #6e58a1;
$custom-dark: #000000;

JSON

{
  "hex": "#281979",
  "rgb": {
    "r": 40,
    "g": 25,
    "b": 121
  },
  "hsl": {
    "h": 249.375,
    "s": 65.753,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30953,
    "c": 0.15162,
    "h": 279.9
  },
  "luminance": 0.02527
}

Semantic roles & 50–950 ramp

primary

#281979

secondary

#9DAE40

accent

#E93FCE

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #281979

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

Preview Lab → · Contrast checker → · Palette generator →