#2A1F99#2A1F99

#2A1F99 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.5% C 0.185 H 275.4°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#2A1F99
RGB	rgb(42, 31, 153)
HSL	hsl(245, 66%, 36%)
HSV	hsv(245, 80%, 60%)
CMYK	cmyk(72.5%, 79.7%, 0%, 40%)
CIE-LAB	lab(22.90, 43.81, -63.76)
CIE-LCH	lch(22.90, 77.36, 304.49°)
OKLab	oklab(35.46% 0.0173 -0.1844)
OKLCH	oklch(35.46% 0.185 275.4)
XYZ	xyz(7.1927, 3.7714, 30.4797)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1F99 #8E991F

analogous

#1F5199 #2A1F99 #671F99

triadic

#2A1F99 #992A1F #1F992A

tetradic

#2A1F99 #991F51 #8E991F #1F9967

square

#2A1F99 #991F51 #8E991F #1F9967

split-complementary

#2A1F99 #99671F #51991F

monochromatic

#0E0A33 #1C1566 #2A1F99 #3829CC #6256DD

Accessibility & contrast

On white

11.97

#2A1F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#2A1F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1F99

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1F99	#FFFFFF	#000000	##FFFFFF
##2A1F99	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9C

Deuteranopia (green-blind)

#003197

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2a1f99;
/* rgb */ color: rgb(42, 31, 153);
/* oklch */ color: oklch(35.5% 0.185 275.4);

Tailwind

colors: {
  custom: {
    50: '#765eb8',
    500: '#2a1f99',
    950: '#000000',
  },
}

SCSS

$custom: #2a1f99;
$custom-light: #765eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1f99",
  "rgb": {
    "r": 42,
    "g": 31,
    "b": 153
  },
  "hsl": {
    "h": 245.41,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.35459,
    "c": 0.18517,
    "h": 275.4
  },
  "luminance": 0.03772
}

Semantic roles & 50–950 ramp

primary

#2A1F99

secondary

#B6C054

accent

#E93FDA

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2A1F99

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

Preview Lab → · Contrast checker → · Palette generator →