#281789#281789

#281789 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.173 H 277.5°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#281789
RGB	rgb(40, 23, 137)
HSL	hsl(249, 71%, 31%)
HSV	hsv(249, 83%, 54%)
CMYK	cmyk(70.8%, 83.2%, 0%, 46.3%)
CIE-LAB	lab(19.51, 42.58, -59.44)
CIE-LCH	lch(19.51, 73.12, 305.62°)
OKLab	oklab(32.52% 0.0225 -0.1717)
OKLCH	oklch(32.52% 0.173 277.5)
XYZ	xyz(5.6954, 2.8695, 23.9158)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281789 #788917

analogous

#173F89 #281789 #611789

triadic

#281789 #892817 #178928

tetradic

#281789 #89173F #788917 #178961

square

#281789 #89173F #788917 #178961

split-complementary

#281789 #896117 #3F8917

monochromatic

#090520 #190E55 #281789 #3720BD #543CDE

Accessibility & contrast

On white

13.34

#281789 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#281789 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281789

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281789	#FFFFFF	#000000	##FFFFFF
##281789	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348C

Deuteranopia (green-blind)

#002A87

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281789;
/* rgb */ color: rgb(40, 23, 137);
/* oklch */ color: oklch(32.5% 0.173 277.5);

Tailwind

colors: {
  custom: {
    50: '#7258ad',
    500: '#281789',
    950: '#000000',
  },
}

SCSS

$custom: #281789;
$custom-light: #7258ad;
$custom-dark: #000000;

JSON

{
  "hex": "#281789",
  "rgb": {
    "r": 40,
    "g": 23,
    "b": 137
  },
  "hsl": {
    "h": 248.947,
    "s": 71.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32521,
    "c": 0.1732,
    "h": 277.5
  },
  "luminance": 0.0287
}

Semantic roles & 50–950 ramp

primary

#281789

secondary

#AABD3F

accent

#EE3AD3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #281789

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

Preview Lab → · Contrast checker → · Palette generator →