#281A7A#281A7A

#281A7A is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.2% C 0.152 H 279.5°. Best body text is #FFFFFF at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#281A7A
RGB	rgb(40, 26, 122)
HSL	hsl(249, 65%, 29%)
HSV	hsv(249, 79%, 48%)
CMYK	cmyk(67.2%, 78.7%, 0%, 52.2%)
CIE-LAB	lab(18.34, 36.23, -51.88)
CIE-LCH	lch(18.34, 63.28, 304.93°)
OKLab	oklab(31.2% 0.0252 -0.1498)
OKLCH	oklch(31.2% 0.152 279.5)
XYZ	xyz(4.7562, 2.5947, 18.6588)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A7A #6C7A1A

analogous

#1A3C7A #281A7A #581A7A

triadic

#281A7A #7A281A #1A7A28

tetradic

#281A7A #7A1A3C #6C7A1A #1A7A58

square

#281A7A #7A1A3C #6C7A1A #1A7A58

split-complementary

#281A7A #7A581A #3C7A1A

monochromatic

#080519 #170F48 #281A7A #3925AC #5039D5

Accessibility & contrast

On white

13.82

#281A7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#281A7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A7A

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A7A	#FFFFFF	#000000	##FFFFFF
##281A7A	1.00	13.82	1.52	13.82
#FFFFFF	13.82	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307D

Deuteranopia (green-blind)

#002978

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #281a7a;
/* rgb */ color: rgb(40, 26, 122);
/* oklch */ color: oklch(31.2% 0.152 279.5);

Tailwind

colors: {
  custom: {
    50: '#6e59a1',
    500: '#281a7a',
    950: '#000000',
  },
}

SCSS

$custom: #281a7a;
$custom-light: #6e59a1;
$custom-dark: #000000;

JSON

{
  "hex": "#281a7a",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 122
  },
  "hsl": {
    "h": 248.75,
    "s": 64.865,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31199,
    "c": 0.15187,
    "h": 279.5
  },
  "luminance": 0.02595
}

Semantic roles & 50–950 ramp

primary

#281A7A

secondary

#9EAE41

accent

#E840CF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #281A7A

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

Preview Lab → · Contrast checker → · Palette generator →