#281D75#281D75

#281D75 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.142 H 279.8°. Best body text is #FFFFFF at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#281D75
RGB	rgb(40, 29, 117)
HSL	hsl(248, 60%, 29%)
HSV	hsv(248, 75%, 46%)
CMYK	cmyk(65.8%, 75.2%, 0%, 54.1%)
CIE-LAB	lab(18.43, 32.82, -48.53)
CIE-LCH	lch(18.43, 58.59, 304.07°)
OKLab	oklab(31.1% 0.0243 -0.14)
OKLCH	oklch(31.1% 0.142 279.8)
XYZ	xyz(4.5243, 2.6139, 17.0923)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D75 #6A751D

analogous

#1D3E75 #281D75 #541D75

triadic

#281D75 #75281D #1D7528

tetradic

#281D75 #751D3E #6A751D #1D7554

square

#281D75 #751D3E #6A751D #1D7554

split-complementary

#281D75 #75541D #3E751D

monochromatic

#080619 #171144 #281D75 #3929A6 #503DCF

Accessibility & contrast

On white

13.79

#281D75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#281D75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D75

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D75	#FFFFFF	#000000	##FFFFFF
##281D75	1.00	13.79	1.52	13.79
#FFFFFF	13.79	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003078

Deuteranopia (green-blind)

#002973

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #281d75;
/* rgb */ color: rgb(40, 29, 117);
/* oklch */ color: oklch(31.1% 0.142 279.8);

Tailwind

colors: {
  custom: {
    50: '#6d5a9e',
    500: '#281d75',
    950: '#000000',
  },
}

SCSS

$custom: #281d75;
$custom-light: #6d5a9e;
$custom-dark: #000000;

JSON

{
  "hex": "#281d75",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 117
  },
  "hsl": {
    "h": 247.5,
    "s": 60.274,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31099,
    "c": 0.14212,
    "h": 279.8
  },
  "luminance": 0.02614
}

Semantic roles & 50–950 ramp

primary

#281D75

secondary

#9DA945

accent

#E344D0

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #281D75

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

Preview Lab → · Contrast checker → · Palette generator →