#281A71#281A71

#281A71 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.2% C 0.140 H 281.3°. Best body text is #FFFFFF at 14.22:1 contrast (WCAG AA passes).

Color values

HEX	#281A71
RGB	rgb(40, 26, 113)
HSL	hsl(250, 63%, 27%)
HSV	hsv(250, 77%, 44%)
CMYK	cmyk(64.6%, 77%, 0%, 55.7%)
CIE-LAB	lab(17.38, 33.25, -47.68)
CIE-LCH	lch(17.38, 58.13, 304.89°)
OKLab	oklab(30.23% 0.0275 -0.1375)
OKLCH	oklch(30.23% 0.14 281.3)
XYZ	xyz(4.2242, 2.3819, 15.8567)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A71 #63711A

analogous

#1A3871 #281A71 #541A71

triadic

#281A71 #71281A #1A7128

tetradic

#281A71 #711A38 #63711A #1A7154

square

#281A71 #711A38 #63711A #1A7154

split-complementary

#281A71 #71541A #38711A

monochromatic

#090619 #160F3F #281A71 #3A25A3 #4E35D0

Accessibility & contrast

On white

14.22

#281A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#281A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A71

14.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A71	#FFFFFF	#000000	##FFFFFF
##281A71	1.00	14.22	1.48	14.22
#FFFFFF	14.22	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E74

Deuteranopia (green-blind)

#00276F

Tritanopia (blue-blind)

#003244

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281a71;
/* rgb */ color: rgb(40, 26, 113);
/* oklch */ color: oklch(30.2% 0.140 281.3);

Tailwind

colors: {
  custom: {
    50: '#6c589b',
    500: '#281a71',
    950: '#000000',
  },
}

SCSS

$custom: #281a71;
$custom-light: #6c589b;
$custom-dark: #000000;

JSON

{
  "hex": "#281a71",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 113
  },
  "hsl": {
    "h": 249.655,
    "s": 62.59,
    "l": 27.255
  },
  "oklch": {
    "l": 0.30228,
    "c": 0.14023,
    "h": 281.3
  },
  "luminance": 0.02382
}

Semantic roles & 50–950 ramp

primary

#281A71

secondary

#96A641

accent

#E642CB

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030E

muted

#7A787E

Preview Lab

Preview with #281A71

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

Preview Lab → · Contrast checker → · Palette generator →