#2A1B87#2A1B87

#2A1B87 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.167 H 278.3°. Best body text is #FFFFFF at 13.08:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B87
RGB	rgb(42, 27, 135)
HSL	hsl(248, 67%, 32%)
HSV	hsv(248, 80%, 53%)
CMYK	cmyk(68.9%, 80%, 0%, 47.1%)
CIE-LAB	lab(20.14, 40.13, -57.14)
CIE-LCH	lch(20.14, 69.82, 305.08°)
OKLab	oklab(32.93% 0.024 -0.165)
OKLCH	oklch(32.93% 0.167 278.3)
XYZ	xyz(5.7185, 3.0249, 23.1995)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B87 #78871B

analogous

#1B4287 #2A1B87 #601B87

triadic

#2A1B87 #872A1B #1B872A

tetradic

#2A1B87 #871B42 #78871B #1B8760

square

#2A1B87 #871B42 #78871B #1B8760

split-complementary

#2A1B87 #87601B #42871B

monochromatic

#0A0721 #1A1154 #2A1B87 #3A25BA #5843D9

Accessibility & contrast

On white

13.08

#2A1B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#2A1B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B87

13.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B87	#FFFFFF	#000000	##FFFFFF
##2A1B87	1.00	13.08	1.61	13.08
#FFFFFF	13.08	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358A

Deuteranopia (green-blind)

#002C85

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2a1b87;
/* rgb */ color: rgb(42, 27, 135);
/* oklch */ color: oklch(32.9% 0.167 278.3);

Tailwind

colors: {
  custom: {
    50: '#725aab',
    500: '#2a1b87',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b87;
$custom-light: #725aab;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b87",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 135
  },
  "hsl": {
    "h": 248.333,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.32934,
    "c": 0.16679,
    "h": 278.3
  },
  "luminance": 0.03025
}

Semantic roles & 50–950 ramp

primary

#2A1B87

secondary

#AABA44

accent

#EA3ED2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #2A1B87

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

Preview Lab → · Contrast checker → · Palette generator →