#2A1B80#2A1B80

#2A1B80 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.2% C 0.158 H 279.5°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B80
RGB	rgb(42, 27, 128)
HSL	hsl(249, 65%, 30%)
HSV	hsv(249, 79%, 50%)
CMYK	cmyk(67.2%, 78.9%, 0%, 49.8%)
CIE-LAB	lab(19.37, 37.87, -54.00)
CIE-LCH	lch(19.37, 65.96, 305.04°)
OKLab	oklab(32.16% 0.026 -0.1559)
OKLCH	oklch(32.16% 0.158 279.5)
XYZ	xyz(5.2418, 2.8342, 20.6887)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B80 #71801B

analogous

#1B3E80 #2A1B80 #5C1B80

triadic

#2A1B80 #802A1B #1B802A

tetradic

#2A1B80 #801B3E #71801B #1B805C

square

#2A1B80 #801B3E #71801B #1B805C

split-complementary

#2A1B80 #805C1B #3E801B

monochromatic

#09061B #19104D #2A1B80 #3B26B3 #553FD6

Accessibility & contrast

On white

13.40

#2A1B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#2A1B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B80

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B80	#FFFFFF	#000000	##FFFFFF
##2A1B80	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003383

Deuteranopia (green-blind)

#002B7E

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #2a1b80;
/* rgb */ color: rgb(42, 27, 128);
/* oklch */ color: oklch(32.2% 0.158 279.5);

Tailwind

colors: {
  custom: {
    50: '#715aa6',
    500: '#2a1b80',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b80;
$custom-light: #715aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b80",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 128
  },
  "hsl": {
    "h": 248.911,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.3216,
    "c": 0.15806,
    "h": 279.5
  },
  "luminance": 0.02835
}

Semantic roles & 50–950 ramp

primary

#2A1B80

secondary

#A3B443

accent

#E840CF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #2A1B80

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

Preview Lab → · Contrast checker → · Palette generator →