#281A72#281A72

#281A72 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.142 H 281.1°. Best body text is #FFFFFF at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#281A72
RGB	rgb(40, 26, 114)
HSL	hsl(250, 63%, 27%)
HSV	hsv(250, 77%, 45%)
CMYK	cmyk(64.9%, 77.2%, 0%, 55.3%)
CIE-LAB	lab(17.48, 33.58, -48.15)
CIE-LCH	lch(17.48, 58.71, 304.89°)
OKLab	oklab(30.33% 0.0272 -0.1389)
OKLCH	oklch(30.33% 0.142 281.1)
XYZ	xyz(4.2808, 2.4045, 16.1549)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A72 #64721A

analogous

#1A3872 #281A72 #541A72

triadic

#281A72 #72281A #1A7228

tetradic

#281A72 #721A38 #64721A #1A7254

square

#281A72 #721A38 #64721A #1A7254

split-complementary

#281A72 #72541A #38721A

monochromatic

#090619 #170F40 #281A72 #3925A4 #4E35D1

Accessibility & contrast

On white

14.18

#281A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#281A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A72

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A72	#FFFFFF	#000000	##FFFFFF
##281A72	1.00	14.18	1.48	14.18
#FFFFFF	14.18	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E75

Deuteranopia (green-blind)

#002870

Tritanopia (blue-blind)

#003344

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281a72;
/* rgb */ color: rgb(40, 26, 114);
/* oklch */ color: oklch(30.3% 0.142 281.1);

Tailwind

colors: {
  custom: {
    50: '#6d589b',
    500: '#281a72',
    950: '#000000',
  },
}

SCSS

$custom: #281a72;
$custom-light: #6d589b;
$custom-dark: #000000;

JSON

{
  "hex": "#281a72",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 114
  },
  "hsl": {
    "h": 249.545,
    "s": 62.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.30334,
    "c": 0.14154,
    "h": 281.1
  },
  "luminance": 0.02405
}

Semantic roles & 50–950 ramp

primary

#281A72

secondary

#97A741

accent

#E642CC

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030E

muted

#7A787E

Preview Lab

Preview with #281A72

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

Preview Lab → · Contrast checker → · Palette generator →