#281C6E#281C6E

#281C6E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.2% C 0.134 H 281.4°. Best body text is #FFFFFF at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#281C6E
RGB	rgb(40, 28, 110)
HSL	hsl(249, 59%, 27%)
HSV	hsv(249, 75%, 43%)
CMYK	cmyk(63.6%, 74.5%, 0%, 56.9%)
CIE-LAB	lab(17.49, 31.04, -45.54)
CIE-LCH	lch(17.49, 55.11, 304.28°)
OKLab	oklab(30.22% 0.0266 -0.1313)
OKLCH	oklch(30.22% 0.134 281.4)
XYZ	xyz(4.1039, 2.4071, 14.9972)
Luminance	0.0241 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C6E #626E1C

analogous

#1C396E #281C6E #511C6E

triadic

#281C6E #6E281C #1C6E28

tetradic

#281C6E #6E1C39 #626E1C #1C6E51

square

#281C6E #6E1C39 #626E1C #1C6E51

split-complementary

#281C6E #6E511C #396E1C

monochromatic

#090618 #16103D #281C6E #3A289F #4E38CC

Accessibility & contrast

On white

14.18

#281C6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#281C6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C6E

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C6E	#FFFFFF	#000000	##FFFFFF
##281C6E	1.00	14.18	1.48	14.18
#FFFFFF	14.18	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E70

Deuteranopia (green-blind)

#00286C

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281c6e;
/* rgb */ color: rgb(40, 28, 110);
/* oklch */ color: oklch(30.2% 0.134 281.4);

Tailwind

colors: {
  custom: {
    50: '#6b5998',
    500: '#281c6e',
    950: '#000000',
  },
}

SCSS

$custom: #281c6e;
$custom-light: #6b5998;
$custom-dark: #000000;

JSON

{
  "hex": "#281c6e",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 110
  },
  "hsl": {
    "h": 248.78,
    "s": 59.42,
    "l": 27.059
  },
  "oklch": {
    "l": 0.30217,
    "c": 0.13393,
    "h": 281.4
  },
  "luminance": 0.02407
}

Semantic roles & 50–950 ramp

primary

#281C6E

secondary

#95A343

accent

#E345CC

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #281C6E

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

Preview Lab → · Contrast checker → · Palette generator →