#2A1C91#2A1C91

#2A1C91 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.2% C 0.178 H 276.7°. Best body text is #FFFFFF at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#2A1C91
RGB	rgb(42, 28, 145)
HSL	hsl(247, 68%, 34%)
HSV	hsv(247, 81%, 57%)
CMYK	cmyk(71%, 80.7%, 0%, 43.1%)
CIE-LAB	lab(21.46, 42.81, -61.21)
CIE-LCH	lch(21.46, 74.69, 304.96°)
OKLab	oklab(34.18% 0.0208 -0.1769)
OKLCH	oklch(34.18% 0.178 276.7)
XYZ	xyz(6.4793, 3.3665, 27.0909)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1C91 #83911C

analogous

#1C4991 #2A1C91 #651C91

triadic

#2A1C91 #912A1C #1C912A

tetradic

#2A1C91 #911C49 #83911C #1C9165

square

#2A1C91 #911C49 #83911C #1C9165

split-complementary

#2A1C91 #91651C #49911C

monochromatic

#0C082A #1B125E #2A1C91 #3926C4 #5C4BDC

Accessibility & contrast

On white

12.55

#2A1C91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#2A1C91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1C91

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1C91	#FFFFFF	#000000	##FFFFFF
##2A1C91	1.00	12.55	1.67	12.55
#FFFFFF	12.55	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003894

Deuteranopia (green-blind)

#002E8F

Tritanopia (blue-blind)

#004057

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #2a1c91;
/* rgb */ color: rgb(42, 28, 145);
/* oklch */ color: oklch(34.2% 0.178 276.7);

Tailwind

colors: {
  custom: {
    50: '#745cb2',
    500: '#2a1c91',
    950: '#000000',
  },
}

SCSS

$custom: #2a1c91;
$custom-light: #745cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1c91",
  "rgb": {
    "r": 42,
    "g": 28,
    "b": 145
  },
  "hsl": {
    "h": 247.179,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.34183,
    "c": 0.17814,
    "h": 276.7
  },
  "luminance": 0.03367
}

Semantic roles & 50–950 ramp

primary

#2A1C91

secondary

#B1BE4A

accent

#EB3DD6

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #2A1C91

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

Preview Lab → · Contrast checker → · Palette generator →