#281D7C#281D7C

#281D7C is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.8% C 0.151 H 278.6°. Best body text is #FFFFFF at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#281D7C
RGB	rgb(40, 29, 124)
HSL	hsl(247, 62%, 30%)
HSV	hsv(247, 77%, 49%)
CMYK	cmyk(67.7%, 76.6%, 0%, 51.4%)
CIE-LAB	lab(19.16, 35.19, -51.81)
CIE-LCH	lch(19.16, 62.63, 304.18°)
OKLab	oklab(31.84% 0.0227 -0.1496)
OKLCH	oklch(31.84% 0.151 278.6)
XYZ	xyz(4.9514, 2.7847, 19.3414)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D7C #717C1D

analogous

#1D427C #281D7C #571D7C

triadic

#281D7C #7C281D #1D7C28

tetradic

#281D7C #7C1D42 #717C1D #1D7C57

square

#281D7C #7C1D42 #717C1D #1D7C57

split-complementary

#281D7C #7C571D #427C1D

monochromatic

#080619 #18114A #281D7C #3829AE #5241D3

Accessibility & contrast

On white

13.49

#281D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#281D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D7C

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D7C	#FFFFFF	#000000	##FFFFFF
##281D7C	1.00	13.49	1.56	13.49
#FFFFFF	13.49	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327F

Deuteranopia (green-blind)

#002B7A

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281d7c;
/* rgb */ color: rgb(40, 29, 124);
/* oklch */ color: oklch(31.8% 0.151 278.6);

Tailwind

colors: {
  custom: {
    50: '#6f5ba3',
    500: '#281d7c',
    950: '#000000',
  },
}

SCSS

$custom: #281d7c;
$custom-light: #6f5ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#281d7c",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 124
  },
  "hsl": {
    "h": 246.947,
    "s": 62.092,
    "l": 30
  },
  "oklch": {
    "l": 0.31841,
    "c": 0.1513,
    "h": 278.6
  },
  "luminance": 0.02785
}

Semantic roles & 50–950 ramp

primary

#281D7C

secondary

#A3B045

accent

#E543D2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281D7C

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

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