#2A1D8B#2A1D8B

#2A1D8B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.170 H 277.4°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#2A1D8B
RGB	rgb(42, 29, 139)
HSL	hsl(247, 65%, 33%)
HSV	hsv(247, 79%, 55%)
CMYK	cmyk(69.8%, 79.1%, 0%, 45.5%)
CIE-LAB	lab(20.96, 40.36, -58.30)
CIE-LCH	lch(20.96, 70.90, 304.70°)
OKLab	oklab(33.64% 0.0219 -0.1684)
OKLCH	oklch(33.64% 0.17 277.4)
XYZ	xyz(6.0529, 3.2345, 24.7264)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1D8B #7E8B1D

analogous

#1D478B #2A1D8B #611D8B

triadic

#2A1D8B #8B2A1D #1D8B2A

tetradic

#2A1D8B #8B1D47 #7E8B1D #1D8B61

square

#2A1D8B #8B1D47 #7E8B1D #1D8B61

split-complementary

#2A1D8B #8B611D #478B1D

monochromatic

#0B0826 #1B1258 #2A1D8B #3928BE #5A49D9

Accessibility & contrast

On white

12.75

#2A1D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#2A1D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1D8B

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1D8B	#FFFFFF	#000000	##FFFFFF
##2A1D8B	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378E

Deuteranopia (green-blind)

#002E89

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2a1d8b;
/* rgb */ color: rgb(42, 29, 139);
/* oklch */ color: oklch(33.6% 0.170 277.4);

Tailwind

colors: {
  custom: {
    50: '#735cae',
    500: '#2a1d8b',
    950: '#000000',
  },
}

SCSS

$custom: #2a1d8b;
$custom-light: #735cae;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1d8b",
  "rgb": {
    "r": 42,
    "g": 29,
    "b": 139
  },
  "hsl": {
    "h": 247.091,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33637,
    "c": 0.16986,
    "h": 277.4
  },
  "luminance": 0.03235
}

Semantic roles & 50–950 ramp

primary

#2A1D8B

secondary

#AEBB49

accent

#E83FD4

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #2A1D8B

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

Preview Lab → · Contrast checker → · Palette generator →