#281D6B#281D6B

#281D6B is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.1% C 0.129 H 281.8°. Best body text is #FFFFFF at 14.21:1 contrast (WCAG AA passes).

Color values

HEX	#281D6B
RGB	rgb(40, 29, 107)
HSL	hsl(248, 57%, 27%)
HSV	hsv(248, 73%, 42%)
CMYK	cmyk(62.6%, 72.9%, 0%, 58%)
CIE-LAB	lab(17.42, 29.40, -43.71)
CIE-LCH	lch(17.42, 52.68, 303.93°)
OKLab	oklab(30.07% 0.0263 -0.1259)
OKLCH	oklch(30.07% 0.129 281.8)
XYZ	xyz(3.9675, 2.3911, 14.1595)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D6B #606B1D

analogous

#1D396B #281D6B #4F1D6B

triadic

#281D6B #6B281D #1D6B28

tetradic

#281D6B #6B1D39 #606B1D #1D6B4F

square

#281D6B #6B1D39 #606B1D #1D6B4F

split-complementary

#281D6B #6B4F1D #396B1D

monochromatic

#090718 #16103B #281D6B #3A2A9B #4D39C9

Accessibility & contrast

On white

14.21

#281D6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#281D6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D6B

14.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D6B	#FFFFFF	#000000	##FFFFFF
##281D6B	1.00	14.21	1.48	14.21
#FFFFFF	14.21	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6D

Deuteranopia (green-blind)

#00286A

Tritanopia (blue-blind)

#003241

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281d6b;
/* rgb */ color: rgb(40, 29, 107);
/* oklch */ color: oklch(30.1% 0.129 281.8);

Tailwind

colors: {
  custom: {
    50: '#6b5a96',
    500: '#281d6b',
    950: '#000000',
  },
}

SCSS

$custom: #281d6b;
$custom-light: #6b5a96;
$custom-dark: #000000;

JSON

{
  "hex": "#281d6b",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 107
  },
  "hsl": {
    "h": 248.462,
    "s": 57.353,
    "l": 26.667
  },
  "oklch": {
    "l": 0.30073,
    "c": 0.12863,
    "h": 281.8
  },
  "luminance": 0.02391
}

Semantic roles & 50–950 ramp

primary

#281D6B

secondary

#93A044

accent

#E147CB

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040D

muted

#7A797E

Preview Lab

Preview with #281D6B

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

Preview Lab → · Contrast checker → · Palette generator →