#2A1B8D#2A1B8D

#2A1B8D is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.174 H 277.4°. Best body text is #FFFFFF at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B8D
RGB	rgb(42, 27, 141)
HSL	hsl(248, 68%, 33%)
HSV	hsv(248, 81%, 55%)
CMYK	cmyk(70.2%, 80.9%, 0%, 44.7%)
CIE-LAB	lab(20.82, 42.05, -59.77)
CIE-LCH	lch(20.82, 73.08, 305.12°)
OKLab	oklab(33.61% 0.0224 -0.1727)
OKLCH	oklch(33.61% 0.174 277.4)
XYZ	xyz(6.1529, 3.1986, 25.4873)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B8D #7E8D1B

analogous

#1B458D #2A1B8D #631B8D

triadic

#2A1B8D #8D2A1B #1B8D2A

tetradic

#2A1B8D #8D1B45 #7E8D1B #1B8D63

square

#2A1B8D #8D1B45 #7E8D1B #1B8D63

split-complementary

#2A1B8D #8D631B #458D1B

monochromatic

#0B0726 #1B115A #2A1B8D #3925C0 #5A47DC

Accessibility & contrast

On white

12.81

#2A1B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#2A1B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B8D

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B8D	#FFFFFF	#000000	##FFFFFF
##2A1B8D	1.00	12.81	1.64	12.81
#FFFFFF	12.81	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003790

Deuteranopia (green-blind)

#002D8B

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2a1b8d;
/* rgb */ color: rgb(42, 27, 141);
/* oklch */ color: oklch(33.6% 0.174 277.4);

Tailwind

colors: {
  custom: {
    50: '#735bb0',
    500: '#2a1b8d',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b8d;
$custom-light: #735bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b8d",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 141
  },
  "hsl": {
    "h": 247.895,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33608,
    "c": 0.17415,
    "h": 277.4
  },
  "luminance": 0.03199
}

Semantic roles & 50–950 ramp

primary

#2A1B8D

secondary

#AEBD46

accent

#EB3DD4

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #2A1B8D

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

Preview Lab → · Contrast checker → · Palette generator →