#281A73#281A73

#281A73 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.143 H 280.9°. Best body text is #FFFFFF at 14.14:1 contrast (WCAG AA passes).

Color values

HEX	#281A73
RGB	rgb(40, 26, 115)
HSL	hsl(249, 63%, 28%)
HSV	hsv(249, 77%, 45%)
CMYK	cmyk(65.2%, 77.4%, 0%, 54.9%)
CIE-LAB	lab(17.59, 33.91, -48.63)
CIE-LCH	lch(17.59, 59.28, 304.89°)
OKLab	oklab(30.44% 0.027 -0.1403)
OKLCH	oklch(30.44% 0.143 280.9)
XYZ	xyz(4.3380, 2.4274, 16.4563)
Luminance	0.0243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A73 #65731A

analogous

#1A3973 #281A73 #541A73

triadic

#281A73 #73281A #1A7328

tetradic

#281A73 #731A39 #65731A #1A7354

square

#281A73 #731A39 #65731A #1A7354

split-complementary

#281A73 #73541A #39731A

monochromatic

#090619 #170F41 #281A73 #3925A5 #4E36D2

Accessibility & contrast

On white

14.14

#281A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#281A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A73

14.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A73	#FFFFFF	#000000	##FFFFFF
##281A73	1.00	14.14	1.49	14.14
#FFFFFF	14.14	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E76

Deuteranopia (green-blind)

#002871

Tritanopia (blue-blind)

#003345

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281a73;
/* rgb */ color: rgb(40, 26, 115);
/* oklch */ color: oklch(30.4% 0.143 280.9);

Tailwind

colors: {
  custom: {
    50: '#6d589c',
    500: '#281a73',
    950: '#000000',
  },
}

SCSS

$custom: #281a73;
$custom-light: #6d589c;
$custom-dark: #000000;

JSON

{
  "hex": "#281a73",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 115
  },
  "hsl": {
    "h": 249.438,
    "s": 63.121,
    "l": 27.647
  },
  "oklch": {
    "l": 0.30441,
    "c": 0.14285,
    "h": 280.9
  },
  "luminance": 0.02428
}

Semantic roles & 50–950 ramp

primary

#281A73

secondary

#98A841

accent

#E642CC

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030E

muted

#7A787E

Preview Lab

Preview with #281A73

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

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