#281C9B#281C9B

#281C9B is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.2% C 0.191 H 274.6°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#281C9B
RGB	rgb(40, 28, 155)
HSL	hsl(246, 69%, 36%)
HSV	hsv(246, 82%, 61%)
CMYK	cmyk(74.2%, 81.9%, 0%, 39.2%)
CIE-LAB	lab(22.47, 45.79, -65.71)
CIE-LCH	lch(22.47, 80.09, 304.87°)
OKLab	oklab(35.19% 0.0153 -0.19)
OKLCH	oklch(35.19% 0.191 274.6)
XYZ	xyz(7.2048, 3.6475, 31.3283)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C9B #8F9B1C

analogous

#1C4F9B #281C9B #671C9B

triadic

#281C9B #9B281C #1C9B28

tetradic

#281C9B #9B1C4F #8F9B1C #1C9B67

square

#281C9B #9B1C4F #8F9B1C #1C9B67

split-complementary

#281C9B #9B671C #4F9B1C

monochromatic

#0D0933 #1B1367 #281C9B #3525CF #5F52E0

Accessibility & contrast

On white

12.14

#281C9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#281C9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C9B

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C9B	#FFFFFF	#000000	##FFFFFF
##281C9B	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9E

Deuteranopia (green-blind)

#003099

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #281c9b;
/* rgb */ color: rgb(40, 28, 155);
/* oklch */ color: oklch(35.2% 0.191 274.6);

Tailwind

colors: {
  custom: {
    50: '#765cba',
    500: '#281c9b',
    950: '#000000',
  },
}

SCSS

$custom: #281c9b;
$custom-light: #765cba;
$custom-dark: #000000;

JSON

{
  "hex": "#281c9b",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 155
  },
  "hsl": {
    "h": 245.669,
    "s": 69.399,
    "l": 35.882
  },
  "oklch": {
    "l": 0.3519,
    "c": 0.19063,
    "h": 274.6
  },
  "luminance": 0.03648
}

Semantic roles & 50–950 ramp

primary

#281C9B

secondary

#B8C350

accent

#EC3CDC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281C9B

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

Preview Lab → · Contrast checker → · Palette generator →