#281A88#281A88

#281A88 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.8% C 0.169 H 277.2°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#281A88
RGB	rgb(40, 26, 136)
HSL	hsl(248, 68%, 32%)
HSV	hsv(248, 81%, 53%)
CMYK	cmyk(70.6%, 80.9%, 0%, 46.7%)
CIE-LAB	lab(19.91, 40.77, -58.16)
CIE-LCH	lch(19.91, 71.02, 305.03°)
OKLab	oklab(32.76% 0.0214 -0.168)
OKLCH	oklch(32.76% 0.169 277.2)
XYZ	xyz(5.6870, 2.9670, 23.5608)
Luminance	0.0297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A88 #7A881A

analogous

#1A4388 #281A88 #5F1A88

triadic

#281A88 #88281A #1A8828

tetradic

#281A88 #881A43 #7A881A #1A885F

square

#281A88 #881A43 #7A881A #1A885F

split-complementary

#281A88 #885F1A #43881A

monochromatic

#0A0621 #191055 #281A88 #3724BB #5542DB

Accessibility & contrast

On white

13.18

#281A88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#281A88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A88

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A88	#FFFFFF	#000000	##FFFFFF
##281A88	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358B

Deuteranopia (green-blind)

#002B86

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281a88;
/* rgb */ color: rgb(40, 26, 136);
/* oklch */ color: oklch(32.8% 0.169 277.2);

Tailwind

colors: {
  custom: {
    50: '#725aac',
    500: '#281a88',
    950: '#000000',
  },
}

SCSS

$custom: #281a88;
$custom-light: #725aac;
$custom-dark: #000000;

JSON

{
  "hex": "#281a88",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 136
  },
  "hsl": {
    "h": 247.636,
    "s": 67.901,
    "l": 31.765
  },
  "oklch": {
    "l": 0.32763,
    "c": 0.1694,
    "h": 277.2
  },
  "luminance": 0.02967
}

Semantic roles & 50–950 ramp

primary

#281A88

secondary

#ACBB43

accent

#EB3DD5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281A88

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

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