#281A80#281A80

#281A80 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.159 H 278.5°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#281A80
RGB	rgb(40, 26, 128)
HSL	hsl(248, 66%, 30%)
HSV	hsv(248, 80%, 50%)
CMYK	cmyk(68.8%, 79.7%, 0%, 49.8%)
CIE-LAB	lab(19.00, 38.19, -54.61)
CIE-LCH	lch(19.00, 66.64, 304.97°)
OKLab	oklab(31.86% 0.0236 -0.1577)
OKLCH	oklch(31.86% 0.159 278.5)
XYZ	xyz(5.1395, 2.7480, 20.6775)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A80 #72801A

analogous

#1A3F80 #281A80 #5B1A80

triadic

#281A80 #80281A #1A8028

tetradic

#281A80 #801A3F #72801A #1A805B

square

#281A80 #801A3F #72801A #1A805B

split-complementary

#281A80 #805B1A #3F801A

monochromatic

#08051A #18104D #281A80 #3824B3 #523DD8

Accessibility & contrast

On white

13.55

#281A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#281A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A80

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A80	#FFFFFF	#000000	##FFFFFF
##281A80	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003283

Deuteranopia (green-blind)

#002A7E

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281a80;
/* rgb */ color: rgb(40, 26, 128);
/* oklch */ color: oklch(31.9% 0.159 278.5);

Tailwind

colors: {
  custom: {
    50: '#7059a6',
    500: '#281a80',
    950: '#000000',
  },
}

SCSS

$custom: #281a80;
$custom-light: #7059a6;
$custom-dark: #000000;

JSON

{
  "hex": "#281a80",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 128
  },
  "hsl": {
    "h": 248.235,
    "s": 66.234,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31862,
    "c": 0.15947,
    "h": 278.5
  },
  "luminance": 0.02748
}

Semantic roles & 50–950 ramp

primary

#281A80

secondary

#A4B442

accent

#E93FD2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281A80

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

Preview Lab → · Contrast checker → · Palette generator →