#281689#281689

#281689 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.4% C 0.174 H 277.6°. Best body text is #FFFFFF at 13.41:1 contrast (WCAG AA passes).

Color values

HEX	#281689
RGB	rgb(40, 22, 137)
HSL	hsl(249, 72%, 31%)
HSV	hsv(249, 84%, 54%)
CMYK	cmyk(70.8%, 83.9%, 0%, 46.3%)
CIE-LAB	lab(19.35, 43.05, -59.71)
CIE-LCH	lch(19.35, 73.61, 305.79°)
OKLab	oklab(32.41% 0.0229 -0.1725)
OKLCH	oklch(32.41% 0.174 277.6)
XYZ	xyz(5.6759, 2.8306, 23.9093)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281689 #778916

analogous

#163D89 #281689 #611689

triadic

#281689 #892816 #168928

tetradic

#281689 #89163D #778916 #168961

square

#281689 #89163D #778916 #168961

split-complementary

#281689 #896116 #3D8916

monochromatic

#090520 #190E54 #281689 #371EBE #543ADF

Accessibility & contrast

On white

13.41

#281689 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#281689 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281689

13.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281689	#FFFFFF	#000000	##FFFFFF
##281689	1.00	13.41	1.57	13.41
#FFFFFF	13.41	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338C

Deuteranopia (green-blind)

#002A87

Tritanopia (blue-blind)

#003A51

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281689;
/* rgb */ color: rgb(40, 22, 137);
/* oklch */ color: oklch(32.4% 0.174 277.6);

Tailwind

colors: {
  custom: {
    50: '#7258ad',
    500: '#281689',
    950: '#000000',
  },
}

SCSS

$custom: #281689;
$custom-light: #7258ad;
$custom-dark: #000000;

JSON

{
  "hex": "#281689",
  "rgb": {
    "r": 40,
    "g": 22,
    "b": 137
  },
  "hsl": {
    "h": 249.391,
    "s": 72.327,
    "l": 31.176
  },
  "oklch": {
    "l": 0.3241,
    "c": 0.17401,
    "h": 277.6
  },
  "luminance": 0.02831
}

Semantic roles & 50–950 ramp

primary

#281689

secondary

#A9BD3E

accent

#EF39D3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #281689

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

Preview Lab → · Contrast checker → · Palette generator →