#281C72#281C72

#281C72 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.139 H 280.6°. Best body text is #FFFFFF at 14.01:1 contrast (WCAG AA passes).

Color values

HEX	#281C72
RGB	rgb(40, 28, 114)
HSL	hsl(248, 61%, 28%)
HSV	hsv(248, 75%, 45%)
CMYK	cmyk(64.9%, 75.4%, 0%, 55.3%)
CIE-LAB	lab(17.90, 32.40, -47.46)
CIE-LCH	lch(17.90, 57.47, 304.32°)
OKLab	oklab(30.63% 0.0257 -0.1369)
OKLCH	oklch(30.63% 0.139 280.6)
XYZ	xyz(4.3266, 2.4962, 16.1701)
Luminance	0.0250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C72 #66721C

analogous

#1C3B72 #281C72 #531C72

triadic

#281C72 #72281C #1C7228

tetradic

#281C72 #721C3B #66721C #1C7253

square

#281C72 #721C3B #66721C #1C7253

split-complementary

#281C72 #72531C #3B721C

monochromatic

#090619 #171041 #281C72 #3928A3 #4F3ACF

Accessibility & contrast

On white

14.01

#281C72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#281C72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C72

14.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C72	#FFFFFF	#000000	##FFFFFF
##281C72	1.00	14.01	1.50	14.01
#FFFFFF	14.01	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F75

Deuteranopia (green-blind)

#002970

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #281c72;
/* rgb */ color: rgb(40, 28, 114);
/* oklch */ color: oklch(30.6% 0.139 280.6);

Tailwind

colors: {
  custom: {
    50: '#6c5a9b',
    500: '#281c72',
    950: '#000000',
  },
}

SCSS

$custom: #281c72;
$custom-light: #6c5a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#281c72",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 114
  },
  "hsl": {
    "h": 248.372,
    "s": 60.563,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30632,
    "c": 0.13928,
    "h": 280.6
  },
  "luminance": 0.02497
}

Semantic roles & 50–950 ramp

primary

#281C72

secondary

#99A643

accent

#E444CD

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040E

muted

#7A797E

Preview Lab

Preview with #281C72

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

Preview Lab → · Contrast checker → · Palette generator →