#281E81#281E81

#281E81 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.5% C 0.157 H 277.7°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#281E81
RGB	rgb(40, 30, 129)
HSL	hsl(246, 62%, 31%)
HSV	hsv(246, 77%, 51%)
CMYK	cmyk(69%, 76.7%, 0%, 49.4%)
CIE-LAB	lab(19.90, 36.29, -53.76)
CIE-LCH	lch(19.90, 64.86, 304.02°)
OKLab	oklab(32.52% 0.0209 -0.1553)
OKLCH	oklch(32.52% 0.157 277.7)
XYZ	xyz(5.3005, 2.9642, 21.0574)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281E81 #77811E

analogous

#1E4581 #281E81 #591E81

triadic

#281E81 #81281E #1E8128

tetradic

#281E81 #811E45 #77811E #1E8159

square

#281E81 #811E45 #77811E #1E8159

split-complementary

#281E81 #81591E #45811E

monochromatic

#09071E #19124F #281E81 #372AB3 #5446D4

Accessibility & contrast

On white

13.18

#281E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#281E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281E81

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281E81	#FFFFFF	#000000	##FFFFFF
##281E81	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003484

Deuteranopia (green-blind)

#002C7F

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281e81;
/* rgb */ color: rgb(40, 30, 129);
/* oklch */ color: oklch(32.5% 0.157 277.7);

Tailwind

colors: {
  custom: {
    50: '#705ca7',
    500: '#281e81',
    950: '#000000',
  },
}

SCSS

$custom: #281e81;
$custom-light: #705ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#281e81",
  "rgb": {
    "r": 40,
    "g": 30,
    "b": 129
  },
  "hsl": {
    "h": 246.061,
    "s": 62.264,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32524,
    "c": 0.1567,
    "h": 277.7
  },
  "luminance": 0.02965
}

Semantic roles & 50–950 ramp

primary

#281E81

secondary

#A9B447

accent

#E542D5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #281E81

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

Preview Lab → · Contrast checker → · Palette generator →