#281EA1#281EA1

#281EA1 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.1% C 0.196 H 273.8°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#281EA1
RGB	rgb(40, 30, 161)
HSL	hsl(245, 69%, 37%)
HSV	hsv(245, 81%, 63%)
CMYK	cmyk(75.2%, 81.4%, 0%, 36.9%)
CIE-LAB	lab(23.51, 46.69, -67.65)
CIE-LCH	lch(23.51, 82.20, 304.61°)
OKLab	oklab(36.12% 0.013 -0.1957)
OKLCH	oklch(36.12% 0.196 273.8)
XYZ	xyz(7.7702, 3.9521, 34.0646)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281EA1 #97A11E

analogous

#1E56A1 #281EA1 #691EA1

triadic

#281EA1 #A1281E #1EA128

tetradic

#281EA1 #A11E56 #97A11E #1EA169

square

#281EA1 #A11E56 #97A11E #1EA169

split-complementary

#281EA1 #A1691E #56A11E

monochromatic

#0E0B3A #1B146D #281EA1 #3528D5 #6459E0

Accessibility & contrast

On white

11.73

#281EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#281EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281EA1

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281EA1	#FFFFFF	#000000	##FFFFFF
##281EA1	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA5

Deuteranopia (green-blind)

#00329F

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #281ea1;
/* rgb */ color: rgb(40, 30, 161);
/* oklch */ color: oklch(36.1% 0.196 273.8);

Tailwind

colors: {
  custom: {
    50: '#775ebe',
    500: '#281ea1',
    950: '#000000',
  },
}

SCSS

$custom: #281ea1;
$custom-light: #775ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#281ea1",
  "rgb": {
    "r": 40,
    "g": 30,
    "b": 161
  },
  "hsl": {
    "h": 244.58,
    "s": 68.586,
    "l": 37.451
  },
  "oklch": {
    "l": 0.36119,
    "c": 0.19611,
    "h": 273.8
  },
  "luminance": 0.03953
}

Semantic roles & 50–950 ramp

primary

#281EA1

secondary

#BCC457

accent

#EB3CDE

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281EA1

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

Preview Lab → · Contrast checker → · Palette generator →