#281F98#281F98

#281F98 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.2% C 0.184 H 274.6°. Best body text is #FFFFFF at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#281F98
RGB	rgb(40, 31, 152)
HSL	hsl(244, 66%, 36%)
HSV	hsv(244, 80%, 60%)
CMYK	cmyk(73.7%, 79.6%, 0%, 40.4%)
CIE-LAB	lab(22.64, 43.32, -63.57)
CIE-LCH	lch(22.64, 76.93, 304.27°)
OKLab	oklab(35.21% 0.0149 -0.1839)
OKLCH	oklch(35.21% 0.184 274.6)
XYZ	xyz(7.0307, 3.6974, 30.0428)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F98 #8F981F

analogous

#1F5298 #281F98 #641F98

triadic

#281F98 #98281F #1F9828

tetradic

#281F98 #981F52 #8F981F #1F9864

square

#281F98 #981F52 #8F981F #1F9864

split-complementary

#281F98 #98641F #52981F

monochromatic

#0D0A32 #1B1565 #281F98 #3529CB #5F55DC

Accessibility & contrast

On white

12.07

#281F98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#281F98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F98

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F98	#FFFFFF	#000000	##FFFFFF
##281F98	1.00	12.07	1.74	12.07
#FFFFFF	12.07	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9B

Deuteranopia (green-blind)

#003096

Tritanopia (blue-blind)

#00445B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #281f98;
/* rgb */ color: rgb(40, 31, 152);
/* oklch */ color: oklch(35.2% 0.184 274.6);

Tailwind

colors: {
  custom: {
    50: '#755eb8',
    500: '#281f98',
    950: '#000000',
  },
}

SCSS

$custom: #281f98;
$custom-light: #755eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#281f98",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 152
  },
  "hsl": {
    "h": 244.463,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.3521,
    "c": 0.18447,
    "h": 274.6
  },
  "luminance": 0.03698
}

Semantic roles & 50–950 ramp

primary

#281F98

secondary

#B8C053

accent

#E93FDC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #281F98

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

Preview Lab → · Contrast checker → · Palette generator →