#281BA1#281BA1

#281BA1 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.8% C 0.198 H 274.0°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#281BA1
RGB	rgb(40, 27, 161)
HSL	hsl(246, 71%, 37%)
HSV	hsv(246, 83%, 63%)
CMYK	cmyk(75.2%, 83.2%, 0%, 36.9%)
CIE-LAB	lab(23.02, 48.12, -68.46)
CIE-LCH	lch(23.02, 83.68, 305.10°)
OKLab	oklab(35.78% 0.014 -0.198)
OKLCH	oklch(35.78% 0.198 274)
XYZ	xyz(7.6979, 3.8074, 34.0405)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281BA1 #94A11B

analogous

#1B51A1 #281BA1 #6B1BA1

triadic

#281BA1 #A1281B #1BA128

tetradic

#281BA1 #A11B51 #94A11B #1BA16B

square

#281BA1 #A11B51 #94A11B #1BA16B

split-complementary

#281BA1 #A16B1B #51A11B

monochromatic

#0E0938 #1B126D #281BA1 #3524D5 #6254E2

Accessibility & contrast

On white

11.92

#281BA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#281BA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281BA1

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281BA1	#FFFFFF	#000000	##FFFFFF
##281BA1	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA5

Deuteranopia (green-blind)

#00319F

Tritanopia (blue-blind)

#004660

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #281ba1;
/* rgb */ color: rgb(40, 27, 161);
/* oklch */ color: oklch(35.8% 0.198 274.0);

Tailwind

colors: {
  custom: {
    50: '#775cbe',
    500: '#281ba1',
    950: '#000000',
  },
}

SCSS

$custom: #281ba1;
$custom-light: #775cbe;
$custom-dark: #000000;

JSON

{
  "hex": "#281ba1",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 161
  },
  "hsl": {
    "h": 245.821,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.35781,
    "c": 0.19846,
    "h": 274
  },
  "luminance": 0.03808
}

Semantic roles & 50–950 ramp

primary

#281BA1

secondary

#BAC552

accent

#EE3ADD

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281BA1

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

Preview Lab → · Contrast checker → · Palette generator →