#281C9F#281C9F

#281C9F is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.7% C 0.195 H 274.2°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#281C9F
RGB	rgb(40, 28, 159)
HSL	hsl(245, 70%, 37%)
HSV	hsv(245, 82%, 62%)
CMYK	cmyk(74.8%, 82.4%, 0%, 37.6%)
CIE-LAB	lab(22.94, 47.04, -67.37)
CIE-LCH	lch(22.94, 82.16, 304.92°)
OKLab	oklab(35.66% 0.0142 -0.1948)
OKLCH	oklch(35.66% 0.195 274.2)
XYZ	xyz(7.5463, 3.7841, 33.1269)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C9F #939F1C

analogous

#1C529F #281C9F #6A1C9F

triadic

#281C9F #9F281C #1C9F28

tetradic

#281C9F #9F1C52 #939F1C #1C9F6A

square

#281C9F #9F1C52 #939F1C #1C9F6A

split-complementary

#281C9F #9F6A1C #529F1C

monochromatic

#0E0A37 #1B136B #281C9F #3525D3 #6154E1

Accessibility & contrast

On white

11.95

#281C9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#281C9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C9F

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C9F	#FFFFFF	#000000	##FFFFFF
##281C9F	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA3

Deuteranopia (green-blind)

#00319D

Tritanopia (blue-blind)

#00455F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #281c9f;
/* rgb */ color: rgb(40, 28, 159);
/* oklch */ color: oklch(35.7% 0.195 274.2);

Tailwind

colors: {
  custom: {
    50: '#775cbd',
    500: '#281c9f',
    950: '#000000',
  },
}

SCSS

$custom: #281c9f;
$custom-light: #775cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#281c9f",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 159
  },
  "hsl": {
    "h": 245.496,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35656,
    "c": 0.19536,
    "h": 274.2
  },
  "luminance": 0.03785
}

Semantic roles & 50–950 ramp

primary

#281C9F

secondary

#BAC453

accent

#ED3BDD

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281C9F

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

Preview Lab → · Contrast checker → · Palette generator →