#2F1F9A#2F1F9A

#2F1F9A is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.9% C 0.185 H 277.5°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#2F1F9A
RGB	rgb(47, 31, 154)
HSL	hsl(248, 66%, 36%)
HSV	hsv(248, 80%, 60%)
CMYK	cmyk(69.5%, 79.9%, 0%, 39.6%)
CIE-LAB	lab(23.39, 44.59, -63.55)
CIE-LCH	lch(23.39, 77.63, 305.06°)
OKLab	oklab(35.94% 0.024 -0.1836)
OKLCH	oklch(35.94% 0.185 277.5)
XYZ	xyz(7.4931, 3.9167, 30.9267)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F1F9A #8A9A1F

analogous

#1F4D9A #2F1F9A #6D1F9A

triadic

#2F1F9A #9A2F1F #1F9A2F

tetradic

#2F1F9A #9A1F4D #8A9A1F #1F9A6D

square

#2F1F9A #9A1F4D #8A9A1F #1F9A6D

split-complementary

#2F1F9A #9A6D1F #4D9A1F

monochromatic

#100A34 #1F1567 #2F1F9A #3F29CD #6856DD

Accessibility & contrast

On white

11.78

#2F1F9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#2F1F9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F1F9A

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F1F9A	#FFFFFF	#000000	##FFFFFF
##2F1F9A	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9D

Deuteranopia (green-blind)

#003398

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2f1f9a;
/* rgb */ color: rgb(47, 31, 154);
/* oklch */ color: oklch(35.9% 0.185 277.5);

Tailwind

colors: {
  custom: {
    50: '#785eb9',
    500: '#2f1f9a',
    950: '#000000',
  },
}

SCSS

$custom: #2f1f9a;
$custom-light: #785eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f1f9a",
  "rgb": {
    "r": 47,
    "g": 31,
    "b": 154
  },
  "hsl": {
    "h": 247.805,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35935,
    "c": 0.18518,
    "h": 277.5
  },
  "luminance": 0.03917
}

Semantic roles & 50–950 ramp

primary

#2F1F9A

secondary

#B3C154

accent

#E93ED3

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2F1F9A

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

Preview Lab → · Contrast checker → · Palette generator →