#281D7F#281D7F

#281D7F is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.2% C 0.155 H 278.2°. Best body text is #FFFFFF at 13.36:1 contrast (WCAG AA passes).

Color values

HEX	#281D7F
RGB	rgb(40, 29, 127)
HSL	hsl(247, 63%, 31%)
HSV	hsv(247, 77%, 50%)
CMYK	cmyk(68.5%, 77.2%, 0%, 50.2%)
CIE-LAB	lab(19.48, 36.19, -53.19)
CIE-LCH	lch(19.48, 64.33, 304.24°)
OKLab	oklab(32.16% 0.022 -0.1536)
OKLCH	oklch(32.16% 0.155 278.2)
XYZ	xyz(5.1440, 2.8617, 20.3558)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D7F #747F1D

analogous

#1D437F #281D7F #591D7F

triadic

#281D7F #7F281D #1D7F28

tetradic

#281D7F #7F1D43 #747F1D #1D7F59

square

#281D7F #7F1D43 #747F1D #1D7F59

split-complementary

#281D7F #7F591D #437F1D

monochromatic

#09061B #18124D #281D7F #3828B1 #5342D4

Accessibility & contrast

On white

13.36

#281D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#281D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D7F

13.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D7F	#FFFFFF	#000000	##FFFFFF
##281D7F	1.00	13.36	1.57	13.36
#FFFFFF	13.36	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003382

Deuteranopia (green-blind)

#002B7D

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281d7f;
/* rgb */ color: rgb(40, 29, 127);
/* oklch */ color: oklch(32.2% 0.155 278.2);

Tailwind

colors: {
  custom: {
    50: '#6f5ba5',
    500: '#281d7f',
    950: '#000000',
  },
}

SCSS

$custom: #281d7f;
$custom-light: #6f5ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#281d7f",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 127
  },
  "hsl": {
    "h": 246.735,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.32164,
    "c": 0.15518,
    "h": 278.2
  },
  "luminance": 0.02862
}

Semantic roles & 50–950 ramp

primary

#281D7F

secondary

#A6B245

accent

#E642D3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281D7F

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

Preview Lab → · Contrast checker → · Palette generator →