#281F92#281F92

#281F92 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.5% C 0.177 H 275.3°. Best body text is #FFFFFF at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#281F92
RGB	rgb(40, 31, 146)
HSL	hsl(245, 65%, 35%)
HSV	hsv(245, 79%, 57%)
CMYK	cmyk(72.6%, 78.8%, 0%, 42.7%)
CIE-LAB	lab(21.97, 41.37, -60.99)
CIE-LCH	lch(21.97, 73.70, 304.15°)
OKLab	oklab(34.53% 0.0163 -0.1764)
OKLCH	oklch(34.53% 0.177 275.3)
XYZ	xyz(6.5517, 3.5058, 27.5200)
Luminance	0.0351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F92 #89921F

analogous

#1F4F92 #281F92 #621F92

triadic

#281F92 #92281F #1F9228

tetradic

#281F92 #921F4F #89921F #1F9262

square

#281F92 #921F4F #89921F #1F9262

split-complementary

#281F92 #92621F #4F921F

monochromatic

#0C0A2D #1A1460 #281F92 #362AC4 #5C51DA

Accessibility & contrast

On white

12.34

#281F92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#281F92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F92

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F92	#FFFFFF	#000000	##FFFFFF
##281F92	1.00	12.34	1.70	12.34
#FFFFFF	12.34	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A95

Deuteranopia (green-blind)

#002F90

Tritanopia (blue-blind)

#004158

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #281f92;
/* rgb */ color: rgb(40, 31, 146);
/* oklch */ color: oklch(34.5% 0.177 275.3);

Tailwind

colors: {
  custom: {
    50: '#745db3',
    500: '#281f92',
    950: '#000000',
  },
}

SCSS

$custom: #281f92;
$custom-light: #745db3;
$custom-dark: #000000;

JSON

{
  "hex": "#281f92",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 146
  },
  "hsl": {
    "h": 244.696,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.34534,
    "c": 0.17712,
    "h": 275.3
  },
  "luminance": 0.03506
}

Semantic roles & 50–950 ramp

primary

#281F92

secondary

#B5BD50

accent

#E840DB

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #281F92

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

Preview Lab → · Contrast checker → · Palette generator →