#281A79#281A79

#281A79 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.151 H 279.7°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#281A79
RGB	rgb(40, 26, 121)
HSL	hsl(249, 65%, 29%)
HSV	hsv(249, 79%, 47%)
CMYK	cmyk(66.9%, 78.5%, 0%, 52.5%)
CIE-LAB	lab(18.23, 35.90, -51.42)
CIE-LCH	lch(18.23, 62.71, 304.92°)
OKLab	oklab(31.09% 0.0254 -0.1484)
OKLCH	oklch(31.09% 0.151 279.7)
XYZ	xyz(4.6946, 2.5700, 18.3341)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A79 #6B791A

analogous

#1A3C79 #281A79 #581A79

triadic

#281A79 #79281A #1A7928

tetradic

#281A79 #791A3C #6B791A #1A7958

square

#281A79 #791A3C #6B791A #1A7958

split-complementary

#281A79 #79581A #3C791A

monochromatic

#080519 #170F47 #281A79 #3925AB #5039D4

Accessibility & contrast

On white

13.87

#281A79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#281A79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A79

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A79	#FFFFFF	#000000	##FFFFFF
##281A79	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307C

Deuteranopia (green-blind)

#002977

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #281a79;
/* rgb */ color: rgb(40, 26, 121);
/* oklch */ color: oklch(31.1% 0.151 279.7);

Tailwind

colors: {
  custom: {
    50: '#6e59a1',
    500: '#281a79',
    950: '#000000',
  },
}

SCSS

$custom: #281a79;
$custom-light: #6e59a1;
$custom-dark: #000000;

JSON

{
  "hex": "#281a79",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 121
  },
  "hsl": {
    "h": 248.842,
    "s": 64.626,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31089,
    "c": 0.15059,
    "h": 279.7
  },
  "luminance": 0.0257
}

Semantic roles & 50–950 ramp

primary

#281A79

secondary

#9DAD41

accent

#E840CF

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #281A79

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

Preview Lab → · Contrast checker → · Palette generator →