#281BA0#281BA0

#281BA0 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.7% C 0.197 H 274.1°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#281BA0
RGB	rgb(40, 27, 160)
HSL	hsl(246, 71%, 37%)
HSV	hsv(246, 83%, 63%)
CMYK	cmyk(75%, 83.1%, 0%, 37.3%)
CIE-LAB	lab(22.90, 47.81, -68.05)
CIE-LCH	lch(22.90, 83.17, 305.09°)
OKLab	oklab(35.66% 0.0143 -0.1968)
OKLCH	oklch(35.66% 0.197 274.1)
XYZ	xyz(7.6101, 3.7723, 33.5779)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281BA0 #93A01B

analogous

#1B50A0 #281BA0 #6B1BA0

triadic

#281BA0 #A0281B #1BA028

tetradic

#281BA0 #A01B50 #93A01B #1BA06B

square

#281BA0 #A01B50 #93A01B #1BA06B

split-complementary

#281BA0 #A06B1B #50A01B

monochromatic

#0E0937 #1B126C #281BA0 #3524D4 #6153E2

Accessibility & contrast

On white

11.97

#281BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#281BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281BA0

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281BA0	#FFFFFF	#000000	##FFFFFF
##281BA0	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA4

Deuteranopia (green-blind)

#00309E

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #281ba0;
/* rgb */ color: rgb(40, 27, 160);
/* oklch */ color: oklch(35.7% 0.197 274.1);

Tailwind

colors: {
  custom: {
    50: '#775cbd',
    500: '#281ba0',
    950: '#000000',
  },
}

SCSS

$custom: #281ba0;
$custom-light: #775cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#281ba0",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 160
  },
  "hsl": {
    "h": 245.865,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35663,
    "c": 0.1973,
    "h": 274.1
  },
  "luminance": 0.03773
}

Semantic roles & 50–950 ramp

primary

#281BA0

secondary

#BAC552

accent

#EE3ADC

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281BA0

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

Preview Lab → · Contrast checker → · Palette generator →