#281C7A#281C7A

#281C7A is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.5% C 0.150 H 279.2°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#281C7A
RGB	rgb(40, 28, 122)
HSL	hsl(248, 63%, 29%)
HSV	hsv(248, 77%, 48%)
CMYK	cmyk(67.2%, 77%, 0%, 52.2%)
CIE-LAB	lab(18.74, 35.09, -51.22)
CIE-LCH	lch(18.74, 62.09, 304.42°)
OKLab	oklab(31.48% 0.0239 -0.1479)
OKLCH	oklch(31.48% 0.15 279.2)
XYZ	xyz(4.8021, 2.6864, 18.6740)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C7A #6E7A1C

analogous

#1C3F7A #281C7A #571C7A

triadic

#281C7A #7A281C #1C7A28

tetradic

#281C7A #7A1C3F #6E7A1C #1C7A57

square

#281C7A #7A1C3F #6E7A1C #1C7A57

split-complementary

#281C7A #7A571C #3F7A1C

monochromatic

#080619 #181148 #281C7A #3827AC #513ED3

Accessibility & contrast

On white

13.66

#281C7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#281C7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C7A

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C7A	#FFFFFF	#000000	##FFFFFF
##281C7A	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317D

Deuteranopia (green-blind)

#002A78

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281c7a;
/* rgb */ color: rgb(40, 28, 122);
/* oklch */ color: oklch(31.5% 0.150 279.2);

Tailwind

colors: {
  custom: {
    50: '#6e5aa1',
    500: '#281c7a',
    950: '#000000',
  },
}

SCSS

$custom: #281c7a;
$custom-light: #6e5aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#281c7a",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 122
  },
  "hsl": {
    "h": 247.66,
    "s": 62.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31481,
    "c": 0.14978,
    "h": 279.2
  },
  "luminance": 0.02687
}

Semantic roles & 50–950 ramp

primary

#281C7A

secondary

#A0AE44

accent

#E642D1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281C7A

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

Preview Lab → · Contrast checker → · Palette generator →