#281A4D#281A4D

#281A4D is a dark, moderate violet. Relative luminance 0.017; OKLCH L 26.7% C 0.090 H 291.8°. Best body text is #FFFFFF at 15.61:1 contrast (WCAG AA passes).

Color values

HEX	#281A4D
RGB	rgb(40, 26, 77)
HSL	hsl(256, 50%, 20%)
HSV	hsv(256, 66%, 30%)
CMYK	cmyk(48.1%, 66.2%, 0%, 69.8%)
CIE-LAB	lab(13.98, 21.13, -29.26)
CIE-LCH	lch(13.98, 36.09, 305.84°)
OKLab	oklab(26.74% 0.0334 -0.0834)
OKLCH	oklch(26.74% 0.09 291.8)
XYZ	xyz(2.5837, 1.7256, 7.2167)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A4D #3F4D1A

analogous

#1A254D #281A4D #421A4D

triadic

#281A4D #4D281A #1A4D28

tetradic

#281A4D #4D1A25 #3F4D1A #1A4D42

square

#281A4D #4D1A25 #3F4D1A #1A4D42

split-complementary

#281A4D #4D421A #254D1A

monochromatic

#0C0817 #100B1F #281A4D #40297B #5839A9

Accessibility & contrast

On white

15.61

#281A4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#281A4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A4D

15.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A4D	#FFFFFF	#000000	##FFFFFF
##281A4D	1.00	15.61	1.35	15.61
#FFFFFF	15.61	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00244F

Deuteranopia (green-blind)

#00234C

Tritanopia (blue-blind)

#1D2530

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #281a4d;
/* rgb */ color: rgb(40, 26, 77);
/* oklch */ color: oklch(26.7% 0.090 291.8);

Tailwind

colors: {
  custom: {
    50: '#65577f',
    500: '#281a4d',
    950: '#000000',
  },
}

SCSS

$custom: #281a4d;
$custom-light: #65577f;
$custom-dark: #000000;

JSON

{
  "hex": "#281a4d",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 77
  },
  "hsl": {
    "h": 256.471,
    "s": 49.515,
    "l": 20.196
  },
  "oklch": {
    "l": 0.26735,
    "c": 0.08989,
    "h": 291.8
  },
  "luminance": 0.01726
}

Semantic roles & 50–950 ramp

primary

#281A4D

secondary

#718340

accent

#D94FB3

background

#F6F5F7

surface

#EBE9EE

border

#C6C5C9

text

#06030A

muted

#7A787C

Preview Lab

Preview with #281A4D

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

Preview Lab → · Contrast checker → · Palette generator →