#281D7E#281D7E

#281D7E is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.154 H 278.3°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#281D7E
RGB	rgb(40, 29, 126)
HSL	hsl(247, 63%, 30%)
HSV	hsv(247, 77%, 49%)
CMYK	cmyk(68.3%, 77%, 0%, 50.6%)
CIE-LAB	lab(19.37, 35.86, -52.73)
CIE-LCH	lch(19.37, 63.76, 304.22°)
OKLab	oklab(32.06% 0.0222 -0.1523)
OKLCH	oklch(32.06% 0.154 278.3)
XYZ	xyz(5.0791, 2.8358, 20.0143)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D7E #737E1D

analogous

#1D427E #281D7E #581D7E

triadic

#281D7E #7E281D #1D7E28

tetradic

#281D7E #7E1D42 #737E1D #1D7E58

square

#281D7E #7E1D42 #737E1D #1D7E58

split-complementary

#281D7E #7E581D #427E1D

monochromatic

#08061B #18124C #281D7E #3828B0 #5242D3

Accessibility & contrast

On white

13.40

#281D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#281D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D7E

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D7E	#FFFFFF	#000000	##FFFFFF
##281D7E	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003381

Deuteranopia (green-blind)

#002B7C

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281d7e;
/* rgb */ color: rgb(40, 29, 126);
/* oklch */ color: oklch(32.1% 0.154 278.3);

Tailwind

colors: {
  custom: {
    50: '#6f5ba4',
    500: '#281d7e',
    950: '#000000',
  },
}

SCSS

$custom: #281d7e;
$custom-light: #6f5ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#281d7e",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 126
  },
  "hsl": {
    "h": 246.804,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32056,
    "c": 0.15389,
    "h": 278.3
  },
  "luminance": 0.02836
}

Semantic roles & 50–950 ramp

primary

#281D7E

secondary

#A5B145

accent

#E642D3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281D7E

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

Preview Lab → · Contrast checker → · Palette generator →