#281F4B#281F4B

#281F4B is a dark, moderate violet. Relative luminance 0.019; OKLCH L 27.6% C 0.078 H 289.7°. Best body text is #FFFFFF at 15.13:1 contrast (WCAG AA passes).

Color values

HEX	#281F4B
RGB	rgb(40, 31, 75)
HSL	hsl(252, 42%, 21%)
HSV	hsv(252, 59%, 29%)
CMYK	cmyk(46.7%, 58.7%, 0%, 70.6%)
CIE-LAB	lab(15.16, 16.99, -25.97)
CIE-LCH	lch(15.16, 31.04, 303.20°)
OKLab	oklab(27.56% 0.0264 -0.0738)
OKLCH	oklch(27.56% 0.078 289.7)
XYZ	xyz(2.6347, 1.9390, 6.8907)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.52

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F4B #424B1F

analogous

#1F2C4B #281F4B #3E1F4B

triadic

#281F4B #4B281F #1F4B28

tetradic

#281F4B #4B1F2C #424B1F #1F4B3E

square

#281F4B #4B1F2C #424B1F #1F4B3E

split-complementary

#281F4B #4B3E1F #2C4B1F

monochromatic

#0C0916 #110D20 #281F4B #3F3176 #5643A2

Accessibility & contrast

On white

15.13

#281F4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#281F4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F4B

15.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F4B	#FFFFFF	#000000	##FFFFFF
##281F4B	1.00	15.13	1.39	15.13
#FFFFFF	15.13	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B274D

Deuteranopia (green-blind)

#0C254A

Tritanopia (blue-blind)

#1E2831

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #281f4b;
/* rgb */ color: rgb(40, 31, 75);
/* oklch */ color: oklch(27.6% 0.078 289.7);

Tailwind

colors: {
  custom: {
    50: '#655a7d',
    500: '#281f4b',
    950: '#000000',
  },
}

SCSS

$custom: #281f4b;
$custom-light: #655a7d;
$custom-dark: #000000;

JSON

{
  "hex": "#281f4b",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 75
  },
  "hsl": {
    "h": 252.273,
    "s": 41.509,
    "l": 20.784
  },
  "oklch": {
    "l": 0.27562,
    "c": 0.07835,
    "h": 289.7
  },
  "luminance": 0.01939
}

Semantic roles & 50–950 ramp

primary

#281F4B

secondary

#748046

accent

#D156B8

background

#F6F5F7

surface

#EBE9EE

border

#C6C5C9

text

#06040A

muted

#7A797C

Preview Lab

Preview with #281F4B

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

Preview Lab → · Contrast checker → · Palette generator →