#281C9A#281C9A

#281C9A is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.1% C 0.189 H 274.7°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#281C9A
RGB	rgb(40, 28, 154)
HSL	hsl(246, 69%, 36%)
HSV	hsv(246, 82%, 60%)
CMYK	cmyk(74%, 81.8%, 0%, 39.6%)
CIE-LAB	lab(22.35, 45.47, -65.29)
CIE-LCH	lch(22.35, 79.57, 304.86°)
OKLab	oklab(35.07% 0.0155 -0.1888)
OKLCH	oklch(35.07% 0.189 274.7)
XYZ	xyz(7.1211, 3.6140, 30.8879)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C9A #8E9A1C

analogous

#1C4F9A #281C9A #671C9A

triadic

#281C9A #9A281C #1C9A28

tetradic

#281C9A #9A1C4F #8E9A1C #1C9A67

square

#281C9A #9A1C4F #8E9A1C #1C9A67

split-complementary

#281C9A #9A671C #4F9A1C

monochromatic

#0D0932 #1B1366 #281C9A #3525CE #5F51DF

Accessibility & contrast

On white

12.19

#281C9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#281C9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C9A

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C9A	#FFFFFF	#000000	##FFFFFF
##281C9A	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9D

Deuteranopia (green-blind)

#003098

Tritanopia (blue-blind)

#00435C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #281c9a;
/* rgb */ color: rgb(40, 28, 154);
/* oklch */ color: oklch(35.1% 0.189 274.7);

Tailwind

colors: {
  custom: {
    50: '#765cb9',
    500: '#281c9a',
    950: '#000000',
  },
}

SCSS

$custom: #281c9a;
$custom-light: #765cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#281c9a",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 154
  },
  "hsl": {
    "h": 245.714,
    "s": 69.231,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35074,
    "c": 0.18944,
    "h": 274.7
  },
  "luminance": 0.03615
}

Semantic roles & 50–950 ramp

primary

#281C9A

secondary

#B7C250

accent

#EC3CDB

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281C9A

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

Preview Lab → · Contrast checker → · Palette generator →