#2A1F9C#2A1F9C

#2A1F9C is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.8% C 0.189 H 275.0°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#2A1F9C
RGB	rgb(42, 31, 156)
HSL	hsl(245, 67%, 37%)
HSV	hsv(245, 80%, 61%)
CMYK	cmyk(73.1%, 80.1%, 0%, 38.8%)
CIE-LAB	lab(23.24, 44.77, -65.04)
CIE-LCH	lch(23.24, 78.95, 304.54°)
OKLab	oklab(35.8% 0.0165 -0.1881)
OKLCH	oklch(35.8% 0.189 275)
XYZ	xyz(7.4436, 3.8718, 31.8011)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1F9C #919C1F

analogous

#1F539C #2A1F9C #691F9C

triadic

#2A1F9C #9C2A1F #1F9C2A

tetradic

#2A1F9C #9C1F53 #919C1F #1F9C69

square

#2A1F9C #9C1F53 #919C1F #1F9C69

split-complementary

#2A1F9C #9C691F #539C1F

monochromatic

#0F0B36 #1C1569 #2A1F9C #3829CF #6358DE

Accessibility & contrast

On white

11.83

#2A1F9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#2A1F9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1F9C

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1F9C	#FFFFFF	#000000	##FFFFFF
##2A1F9C	1.00	11.83	1.77	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9F

Deuteranopia (green-blind)

#00329A

Tritanopia (blue-blind)

#00455D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2a1f9c;
/* rgb */ color: rgb(42, 31, 156);
/* oklch */ color: oklch(35.8% 0.189 275.0);

Tailwind

colors: {
  custom: {
    50: '#775ebb',
    500: '#2a1f9c',
    950: '#000000',
  },
}

SCSS

$custom: #2a1f9c;
$custom-light: #775ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1f9c",
  "rgb": {
    "r": 42,
    "g": 31,
    "b": 156
  },
  "hsl": {
    "h": 245.28,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35799,
    "c": 0.1888,
    "h": 275
  },
  "luminance": 0.03873
}

Semantic roles & 50–950 ramp

primary

#2A1F9C

secondary

#B8C155

accent

#EA3EDB

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2A1F9C

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

Preview Lab → · Contrast checker → · Palette generator →