#2A1B88#2A1B88

#2A1B88 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.168 H 278.1°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B88
RGB	rgb(42, 27, 136)
HSL	hsl(248, 67%, 32%)
HSV	hsv(248, 80%, 53%)
CMYK	cmyk(69.1%, 80.1%, 0%, 46.7%)
CIE-LAB	lab(20.26, 40.45, -57.58)
CIE-LCH	lch(20.26, 70.37, 305.09°)
OKLab	oklab(33.05% 0.0238 -0.1663)
OKLCH	oklch(33.05% 0.168 278.1)
XYZ	xyz(5.7893, 3.0532, 23.5720)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B88 #79881B

analogous

#1B4388 #2A1B88 #611B88

triadic

#2A1B88 #882A1B #1B882A

tetradic

#2A1B88 #881B43 #79881B #1B8861

square

#2A1B88 #881B43 #79881B #1B8861

split-complementary

#2A1B88 #88611B #43881B

monochromatic

#0A0722 #1A1155 #2A1B88 #3A25BB #5844DA

Accessibility & contrast

On white

13.04

#2A1B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#2A1B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B88

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B88	#FFFFFF	#000000	##FFFFFF
##2A1B88	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358B

Deuteranopia (green-blind)

#002C86

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2a1b88;
/* rgb */ color: rgb(42, 27, 136);
/* oklch */ color: oklch(33.0% 0.168 278.1);

Tailwind

colors: {
  custom: {
    50: '#725aac',
    500: '#2a1b88',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b88;
$custom-light: #725aac;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b88",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 136
  },
  "hsl": {
    "h": 248.257,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.33045,
    "c": 0.16803,
    "h": 278.1
  },
  "luminance": 0.03054
}

Semantic roles & 50–950 ramp

primary

#2A1B88

secondary

#ABBB44

accent

#EA3ED2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #2A1B88

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

Preview Lab → · Contrast checker → · Palette generator →