#281C7E#281C7E

#281C7E is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.9% C 0.155 H 278.5°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#281C7E
RGB	rgb(40, 28, 126)
HSL	hsl(247, 64%, 30%)
HSV	hsv(247, 78%, 49%)
CMYK	cmyk(68.3%, 77.8%, 0%, 50.6%)
CIE-LAB	lab(19.17, 36.43, -53.06)
CIE-LCH	lch(19.17, 64.36, 304.47°)
OKLab	oklab(31.91% 0.0229 -0.1532)
OKLCH	oklch(31.91% 0.155 278.5)
XYZ	xyz(5.0550, 2.7876, 20.0063)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C7E #727E1C

analogous

#1C417E #281C7E #591C7E

triadic

#281C7E #7E281C #1C7E28

tetradic

#281C7E #7E1C41 #727E1C #1C7E59

square

#281C7E #7E1C41 #727E1C #1C7E59

split-complementary

#281C7E #7E591C #417E1C

monochromatic

#08061A #18114C #281C7E #3827B0 #5240D5

Accessibility & contrast

On white

13.48

#281C7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#281C7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C7E

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C7E	#FFFFFF	#000000	##FFFFFF
##281C7E	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003281

Deuteranopia (green-blind)

#002A7C

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281c7e;
/* rgb */ color: rgb(40, 28, 126);
/* oklch */ color: oklch(31.9% 0.155 278.5);

Tailwind

colors: {
  custom: {
    50: '#6f5aa4',
    500: '#281c7e',
    950: '#000000',
  },
}

SCSS

$custom: #281c7e;
$custom-light: #6f5aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#281c7e",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 126
  },
  "hsl": {
    "h": 247.347,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31914,
    "c": 0.15493,
    "h": 278.5
  },
  "luminance": 0.02788
}

Semantic roles & 50–950 ramp

primary

#281C7E

secondary

#A4B244

accent

#E741D2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281C7E

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

Preview Lab → · Contrast checker → · Palette generator →