#281D6E#281D6E

#281D6E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.4% C 0.133 H 281.2°. Best body text is #FFFFFF at 14.08:1 contrast (WCAG AA passes).

Color values

HEX	#281D6E
RGB	rgb(40, 29, 110)
HSL	hsl(248, 58%, 27%)
HSV	hsv(248, 74%, 43%)
CMYK	cmyk(63.6%, 73.6%, 0%, 56.9%)
CIE-LAB	lab(17.72, 30.43, -45.18)
CIE-LCH	lch(17.72, 54.47, 303.96°)
OKLab	oklab(30.38% 0.0257 -0.1302)
OKLCH	oklch(30.38% 0.133 281.2)
XYZ	xyz(4.1280, 2.4553, 15.0052)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D6E #636E1D

analogous

#1D3B6E #281D6E #511D6E

triadic

#281D6E #6E281D #1D6E28

tetradic

#281D6E #6E1D3B #636E1D #1D6E51

square

#281D6E #6E1D3B #636E1D #1D6E51

split-complementary

#281D6E #6E511D #3B6E1D

monochromatic

#090618 #16103E #281D6E #3A2A9E #4E3ACB

Accessibility & contrast

On white

14.08

#281D6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#281D6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D6E

14.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D6E	#FFFFFF	#000000	##FFFFFF
##281D6E	1.00	14.08	1.49	14.08
#FFFFFF	14.08	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E70

Deuteranopia (green-blind)

#00286C

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281d6e;
/* rgb */ color: rgb(40, 29, 110);
/* oklch */ color: oklch(30.4% 0.133 281.2);

Tailwind

colors: {
  custom: {
    50: '#6b5a98',
    500: '#281d6e',
    950: '#000000',
  },
}

SCSS

$custom: #281d6e;
$custom-light: #6b5a98;
$custom-dark: #000000;

JSON

{
  "hex": "#281d6e",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 110
  },
  "hsl": {
    "h": 248.148,
    "s": 58.273,
    "l": 27.255
  },
  "oklch": {
    "l": 0.30376,
    "c": 0.13272,
    "h": 281.2
  },
  "luminance": 0.02456
}

Semantic roles & 50–950 ramp

primary

#281D6E

secondary

#96A244

accent

#E146CC

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #281D6E

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

Preview Lab → · Contrast checker → · Palette generator →