#281DC9#281DC9

#281DC9 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.8% C 0.242 H 270.7°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#281DC9
RGB	rgb(40, 29, 201)
HSL	hsl(244, 75%, 45%)
HSV	hsv(244, 86%, 79%)
CMYK	cmyk(80.1%, 85.6%, 0%, 21.2%)
CIE-LAB	lab(28.24, 59.14, -83.68)
CIE-LCH	lch(28.24, 102.47, 305.25°)
OKLab	oklab(40.77% 0.0032 -0.2421)
OKLCH	oklch(40.77% 0.242 270.7)
XYZ	xyz(11.8535, 5.5455, 55.6927)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281DC9 #BEC91D

analogous

#1D68C9 #281DC9 #7E1DC9

triadic

#281DC9 #C9281D #1DC928

tetradic

#281DC9 #C91D68 #BEC91D #1DC97E

square

#281DC9 #C91D68 #BEC91D #1DC97E

split-complementary

#281DC9 #C97E1D #68C91D

monochromatic

#130E5E #1D1594 #281DC9 #4A40E3 #7D75EB

Accessibility & contrast

On white

9.96

#281DC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#281DC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281DC9

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281DC9	#FFFFFF	#000000	##FFFFFF
##281DC9	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BCD

Deuteranopia (green-blind)

#003AC6

Tritanopia (blue-blind)

#005777

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #281dc9;
/* rgb */ color: rgb(40, 29, 201);
/* oklch */ color: oklch(40.8% 0.242 270.7);

Tailwind

colors: {
  custom: {
    50: '#8160db',
    500: '#281dc9',
    950: '#000000',
  },
}

SCSS

$custom: #281dc9;
$custom-light: #8160db;
$custom-dark: #000000;

JSON

{
  "hex": "#281dc9",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 201
  },
  "hsl": {
    "h": 243.837,
    "s": 74.783,
    "l": 45.098
  },
  "oklch": {
    "l": 0.40769,
    "c": 0.24208,
    "h": 270.7
  },
  "luminance": 0.05547
}

Semantic roles & 50–950 ramp

primary

#281DC9

secondary

#CCD270

accent

#F136E5

background

#F9F5FD

surface

#F1EAFB

border

#CBC6D4

text

#0D0515

muted

#7E7983

Preview Lab

Preview with #281DC9

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

Preview Lab → · Contrast checker → · Palette generator →