#2A1B84#2A1B84

#2A1B84 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.163 H 278.8°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B84
RGB	rgb(42, 27, 132)
HSL	hsl(249, 66%, 31%)
HSV	hsv(249, 80%, 52%)
CMYK	cmyk(68.2%, 79.5%, 0%, 48.2%)
CIE-LAB	lab(19.81, 39.17, -55.80)
CIE-LCH	lch(19.81, 68.18, 305.07°)
OKLab	oklab(32.6% 0.0249 -0.1612)
OKLCH	oklch(32.6% 0.163 278.8)
XYZ	xyz(5.5103, 2.9416, 22.1027)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B84 #75841B

analogous

#1B4084 #2A1B84 #5E1B84

triadic

#2A1B84 #842A1B #1B842A

tetradic

#2A1B84 #841B40 #75841B #1B845E

square

#2A1B84 #841B40 #75841B #1B845E

split-complementary

#2A1B84 #845E1B #40841B

monochromatic

#0A061E #1A1151 #2A1B84 #3A25B7 #5741D8

Accessibility & contrast

On white

13.22

#2A1B84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#2A1B84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B84

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B84	#FFFFFF	#000000	##FFFFFF
##2A1B84	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003487

Deuteranopia (green-blind)

#002C82

Tritanopia (blue-blind)

#003A4F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #2a1b84;
/* rgb */ color: rgb(42, 27, 132);
/* oklch */ color: oklch(32.6% 0.163 278.8);

Tailwind

colors: {
  custom: {
    50: '#715aa9',
    500: '#2a1b84',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b84;
$custom-light: #715aa9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b84",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 132
  },
  "hsl": {
    "h": 248.571,
    "s": 66.038,
    "l": 31.176
  },
  "oklch": {
    "l": 0.326,
    "c": 0.16307,
    "h": 278.8
  },
  "luminance": 0.02942
}

Semantic roles & 50–950 ramp

primary

#2A1B84

secondary

#A7B743

accent

#E93FD1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #2A1B84

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

Preview Lab → · Contrast checker → · Palette generator →