#281A9F#281A9F

#281A9F is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.4% C 0.197 H 274.3°. Best body text is #FFFFFF at 12.08:1 contrast (WCAG AA passes).

Color values

HEX	#281A9F
RGB	rgb(40, 26, 159)
HSL	hsl(246, 72%, 36%)
HSV	hsv(246, 84%, 62%)
CMYK	cmyk(74.8%, 83.6%, 0%, 37.6%)
CIE-LAB	lab(22.63, 47.97, -67.90)
CIE-LCH	lch(22.63, 83.13, 305.24°)
OKLab	oklab(35.44% 0.0149 -0.1963)
OKLCH	oklch(35.44% 0.197 274.3)
XYZ	xyz(7.5004, 3.6923, 33.1116)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A9F #919F1A

analogous

#1A4F9F #281A9F #6B1A9F

triadic

#281A9F #9F281A #1A9F28

tetradic

#281A9F #9F1A4F #919F1A #1A9F6B

square

#281A9F #9F1A4F #919F1A #1A9F6B

split-complementary

#281A9F #9F6B1A #4F9F1A

monochromatic

#0E0936 #1B116A #281A9F #3523D4 #6051E3

Accessibility & contrast

On white

12.08

#281A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#281A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A9F

12.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A9F	#FFFFFF	#000000	##FFFFFF
##281A9F	1.00	12.08	1.74	12.08
#FFFFFF	12.08	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA3

Deuteranopia (green-blind)

#00309D

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #281a9f;
/* rgb */ color: rgb(40, 26, 159);
/* oklch */ color: oklch(35.4% 0.197 274.3);

Tailwind

colors: {
  custom: {
    50: '#775bbd',
    500: '#281a9f',
    950: '#000000',
  },
}

SCSS

$custom: #281a9f;
$custom-light: #775bbd;
$custom-dark: #000000;

JSON

{
  "hex": "#281a9f",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 159
  },
  "hsl": {
    "h": 246.316,
    "s": 71.892,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35437,
    "c": 0.19689,
    "h": 274.3
  },
  "luminance": 0.03693
}

Semantic roles & 50–950 ramp

primary

#281A9F

secondary

#B9C550

accent

#EF39DC

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281A9F

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

Preview Lab → · Contrast checker → · Palette generator →