#281AA1#281AA1

#281AA1 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.7% C 0.199 H 274.1°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#281AA1
RGB	rgb(40, 26, 161)
HSL	hsl(246, 72%, 37%)
HSV	hsv(246, 84%, 63%)
CMYK	cmyk(75.2%, 83.9%, 0%, 36.9%)
CIE-LAB	lab(22.87, 48.58, -68.71)
CIE-LCH	lch(22.87, 84.15, 305.26°)
OKLab	oklab(35.67% 0.0143 -0.1987)
OKLCH	oklch(35.67% 0.199 274.1)
XYZ	xyz(7.6754, 3.7623, 34.0330)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281AA1 #93A11A

analogous

#1A50A1 #281AA1 #6C1AA1

triadic

#281AA1 #A1281A #1AA128

tetradic

#281AA1 #A11A50 #93A11A #1AA16C

square

#281AA1 #A11A50 #93A11A #1AA16C

split-complementary

#281AA1 #A16C1A #50A11A

monochromatic

#0E0938 #1B116C #281AA1 #3523D6 #6152E3

Accessibility & contrast

On white

11.98

#281AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#281AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281AA1

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281AA1	#FFFFFF	#000000	##FFFFFF
##281AA1	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA5

Deuteranopia (green-blind)

#00309F

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #281aa1;
/* rgb */ color: rgb(40, 26, 161);
/* oklch */ color: oklch(35.7% 0.199 274.1);

Tailwind

colors: {
  custom: {
    50: '#785cbe',
    500: '#281aa1',
    950: '#000000',
  },
}

SCSS

$custom: #281aa1;
$custom-light: #785cbe;
$custom-dark: #000000;

JSON

{
  "hex": "#281aa1",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 161
  },
  "hsl": {
    "h": 246.222,
    "s": 72.193,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35674,
    "c": 0.19921,
    "h": 274.1
  },
  "luminance": 0.03763
}

Semantic roles & 50–950 ramp

primary

#281AA1

secondary

#BAC651

accent

#EF39DC

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281AA1

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

Preview Lab → · Contrast checker → · Palette generator →