#2A1F9F#2A1F9F

#2A1F9F is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.1% C 0.192 H 274.7°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#2A1F9F
RGB	rgb(42, 31, 159)
HSL	hsl(245, 67%, 37%)
HSV	hsv(245, 81%, 62%)
CMYK	cmyk(73.6%, 80.5%, 0%, 37.6%)
CIE-LAB	lab(23.59, 45.72, -66.30)
CIE-LCH	lch(23.59, 80.53, 304.59°)
OKLab	oklab(36.14% 0.0158 -0.1917)
OKLCH	oklch(36.14% 0.192 274.7)
XYZ	xyz(7.7008, 3.9747, 33.1555)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1F9F #949F1F

analogous

#1F549F #2A1F9F #6A1F9F

triadic

#2A1F9F #9F2A1F #1F9F2A

tetradic

#2A1F9F #9F1F54 #949F1F #1F9F6A

square

#2A1F9F #9F1F54 #949F1F #1F9F6A

split-complementary

#2A1F9F #9F6A1F #549F1F

monochromatic

#0F0B39 #1C156C #2A1F9F #3829D2 #655ADF

Accessibility & contrast

On white

11.70

#2A1F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#2A1F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1F9F

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1F9F	#FFFFFF	#000000	##FFFFFF
##2A1F9F	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA3

Deuteranopia (green-blind)

#00329D

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2a1f9f;
/* rgb */ color: rgb(42, 31, 159);
/* oklch */ color: oklch(36.1% 0.192 274.7);

Tailwind

colors: {
  custom: {
    50: '#775ebd',
    500: '#2a1f9f',
    950: '#000000',
  },
}

SCSS

$custom: #2a1f9f;
$custom-light: #775ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1f9f",
  "rgb": {
    "r": 42,
    "g": 31,
    "b": 159
  },
  "hsl": {
    "h": 245.156,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36139,
    "c": 0.19238,
    "h": 274.7
  },
  "luminance": 0.03975
}

Semantic roles & 50–950 ramp

primary

#2A1F9F

secondary

#B9C357

accent

#EA3EDB

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2A1F9F

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

Preview Lab → · Contrast checker → · Palette generator →