#281A78#281A78

#281A78 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.0% C 0.149 H 279.9°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#281A78
RGB	rgb(40, 26, 120)
HSL	hsl(249, 64%, 29%)
HSV	hsv(249, 78%, 47%)
CMYK	cmyk(66.7%, 78.3%, 0%, 52.9%)
CIE-LAB	lab(18.12, 35.57, -50.96)
CIE-LCH	lch(18.12, 62.14, 304.92°)
OKLab	oklab(30.98% 0.0257 -0.1471)
OKLCH	oklch(30.98% 0.149 279.9)
XYZ	xyz(4.6336, 2.5456, 18.0128)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A78 #6A781A

analogous

#1A3B78 #281A78 #571A78

triadic

#281A78 #78281A #1A7828

tetradic

#281A78 #781A3B #6A781A #1A7857

square

#281A78 #781A3B #6A781A #1A7857

split-complementary

#281A78 #78571A #3B781A

monochromatic

#080519 #170F46 #281A78 #3925AA #5038D4

Accessibility & contrast

On white

13.91

#281A78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#281A78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A78

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A78	#FFFFFF	#000000	##FFFFFF
##281A78	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307B

Deuteranopia (green-blind)

#002976

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #281a78;
/* rgb */ color: rgb(40, 26, 120);
/* oklch */ color: oklch(31.0% 0.149 279.9);

Tailwind

colors: {
  custom: {
    50: '#6e59a0',
    500: '#281a78',
    950: '#000000',
  },
}

SCSS

$custom: #281a78;
$custom-light: #6e59a0;
$custom-dark: #000000;

JSON

{
  "hex": "#281a78",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 120
  },
  "hsl": {
    "h": 248.936,
    "s": 64.384,
    "l": 28.627
  },
  "oklch": {
    "l": 0.3098,
    "c": 0.14932,
    "h": 279.9
  },
  "luminance": 0.02546
}

Semantic roles & 50–950 ramp

primary

#281A78

secondary

#9DAC41

accent

#E740CF

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08030F

muted

#7B787F

Preview Lab

Preview with #281A78

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

Preview Lab → · Contrast checker → · Palette generator →