#2A1B99#2A1B99

#2A1B99 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.0% C 0.189 H 275.8°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B99
RGB	rgb(42, 27, 153)
HSL	hsl(247, 70%, 35%)
HSV	hsv(247, 82%, 60%)
CMYK	cmyk(72.5%, 82.4%, 0%, 40%)
CIE-LAB	lab(22.21, 45.81, -64.90)
CIE-LCH	lch(22.21, 79.44, 305.22°)
OKLab	oklab(34.98% 0.019 -0.1876)
OKLCH	oklch(34.98% 0.189 275.8)
XYZ	xyz(7.0947, 3.5753, 30.4470)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B99 #8A991B

analogous

#1B4B99 #2A1B99 #691B99

triadic

#2A1B99 #992A1B #1B992A

tetradic

#2A1B99 #991B4B #8A991B #1B9969

square

#2A1B99 #991B4B #8A991B #1B9969

split-complementary

#2A1B99 #99691B #4B991B

monochromatic

#0D0931 #1C1265 #2A1B99 #3824CD #604FE0

Accessibility & contrast

On white

12.24

#2A1B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#2A1B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B99

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B99	#FFFFFF	#000000	##FFFFFF
##2A1B99	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9C

Deuteranopia (green-blind)

#002F97

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #2a1b99;
/* rgb */ color: rgb(42, 27, 153);
/* oklch */ color: oklch(35.0% 0.189 275.8);

Tailwind

colors: {
  custom: {
    50: '#765cb8',
    500: '#2a1b99',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b99;
$custom-light: #765cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b99",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 153
  },
  "hsl": {
    "h": 247.143,
    "s": 70,
    "l": 35.294
  },
  "oklch": {
    "l": 0.34982,
    "c": 0.18856,
    "h": 275.8
  },
  "luminance": 0.03576
}

Semantic roles & 50–950 ramp

primary

#2A1B99

secondary

#B4C24E

accent

#ED3BD8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2A1B99

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

Preview Lab → · Contrast checker → · Palette generator →