#281A9D#281A9D

#281A9D is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.2% C 0.195 H 274.5°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#281A9D
RGB	rgb(40, 26, 157)
HSL	hsl(246, 72%, 36%)
HSV	hsv(246, 83%, 62%)
CMYK	cmyk(74.5%, 83.4%, 0%, 38.4%)
CIE-LAB	lab(22.39, 47.35, -67.07)
CIE-LCH	lch(22.39, 82.11, 305.22°)
OKLab	oklab(35.2% 0.0154 -0.1939)
OKLCH	oklch(35.2% 0.195 274.5)
XYZ	xyz(7.3283, 3.6235, 32.2049)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A9D #8F9D1A

analogous

#1A4D9D #281A9D #691A9D

triadic

#281A9D #9D281A #1A9D28

tetradic

#281A9D #9D1A4D #8F9D1A #1A9D69

square

#281A9D #9D1A4D #8F9D1A #1A9D69

split-complementary

#281A9D #9D691A #4D9D1A

monochromatic

#0D0934 #1B1168 #281A9D #3523D2 #5F4FE2

Accessibility & contrast

On white

12.18

#281A9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#281A9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A9D

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A9D	#FFFFFF	#000000	##FFFFFF
##281A9D	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA1

Deuteranopia (green-blind)

#002F9B

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #281a9d;
/* rgb */ color: rgb(40, 26, 157);
/* oklch */ color: oklch(35.2% 0.195 274.5);

Tailwind

colors: {
  custom: {
    50: '#775bbb',
    500: '#281a9d',
    950: '#000000',
  },
}

SCSS

$custom: #281a9d;
$custom-light: #775bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#281a9d",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 157
  },
  "hsl": {
    "h": 246.412,
    "s": 71.585,
    "l": 35.882
  },
  "oklch": {
    "l": 0.35201,
    "c": 0.19455,
    "h": 274.5
  },
  "luminance": 0.03624
}

Semantic roles & 50–950 ramp

primary

#281A9D

secondary

#B8C44E

accent

#EE39DB

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281A9D

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

Preview Lab → · Contrast checker → · Palette generator →