#281D7A#281D7A

#281D7A is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.6% C 0.149 H 279.0°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#281D7A
RGB	rgb(40, 29, 122)
HSL	hsl(247, 62%, 30%)
HSV	hsv(247, 76%, 48%)
CMYK	cmyk(67.2%, 76.2%, 0%, 52.2%)
CIE-LAB	lab(18.95, 34.51, -50.88)
CIE-LCH	lch(18.95, 61.48, 304.15°)
OKLab	oklab(31.63% 0.0232 -0.1469)
OKLCH	oklch(31.63% 0.149 279)
XYZ	xyz(4.8262, 2.7346, 18.6821)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D7A #6F7A1D

analogous

#1D417A #281D7A #571D7A

triadic

#281D7A #7A281D #1D7A28

tetradic

#281D7A #7A1D41 #6F7A1D #1D7A57

square

#281D7A #7A1D41 #6F7A1D #1D7A57

split-complementary

#281D7A #7A571D #417A1D

monochromatic

#080619 #181149 #281D7A #3829AB #5140D2

Accessibility & contrast

On white

13.57

#281D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#281D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D7A

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D7A	#FFFFFF	#000000	##FFFFFF
##281D7A	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327D

Deuteranopia (green-blind)

#002A78

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281d7a;
/* rgb */ color: rgb(40, 29, 122);
/* oklch */ color: oklch(31.6% 0.149 279.0);

Tailwind

colors: {
  custom: {
    50: '#6e5ba1',
    500: '#281d7a',
    950: '#000000',
  },
}

SCSS

$custom: #281d7a;
$custom-light: #6e5ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#281d7a",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 122
  },
  "hsl": {
    "h": 247.097,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.31627,
    "c": 0.1487,
    "h": 279
  },
  "luminance": 0.02735
}

Semantic roles & 50–950 ramp

primary

#281D7A

secondary

#A1AE45

accent

#E543D2

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281D7A

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

Preview Lab → · Contrast checker → · Palette generator →