#2F1F9B#2F1F9B

#2F1F9B is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.0% C 0.186 H 277.3°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#2F1F9B
RGB	rgb(47, 31, 155)
HSL	hsl(248, 67%, 36%)
HSV	hsv(248, 80%, 61%)
CMYK	cmyk(69.7%, 80%, 0%, 39.2%)
CIE-LAB	lab(23.51, 44.90, -63.98)
CIE-LCH	lch(23.51, 78.16, 305.06°)
OKLab	oklab(36.05% 0.0238 -0.1849)
OKLCH	oklch(36.05% 0.186 277.3)
XYZ	xyz(7.5767, 3.9502, 31.3672)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F1F9B #8B9B1F

analogous

#1F4D9B #2F1F9B #6D1F9B

triadic

#2F1F9B #9B2F1F #1F9B2F

tetradic

#2F1F9B #9B1F4D #8B9B1F #1F9B6D

square

#2F1F9B #9B1F4D #8B9B1F #1F9B6D

split-complementary

#2F1F9B #9B6D1F #4D9B1F

monochromatic

#100B35 #201568 #2F1F9B #3E29CE #6857DD

Accessibility & contrast

On white

11.73

#2F1F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2F1F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F1F9B

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F1F9B	#FFFFFF	#000000	##FFFFFF
##2F1F9B	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9E

Deuteranopia (green-blind)

#003399

Tritanopia (blue-blind)

#00455D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2f1f9b;
/* rgb */ color: rgb(47, 31, 155);
/* oklch */ color: oklch(36.0% 0.186 277.3);

Tailwind

colors: {
  custom: {
    50: '#785eba',
    500: '#2f1f9b',
    950: '#000000',
  },
}

SCSS

$custom: #2f1f9b;
$custom-light: #785eba;
$custom-dark: #000000;

JSON

{
  "hex": "#2f1f9b",
  "rgb": {
    "r": 47,
    "g": 31,
    "b": 155
  },
  "hsl": {
    "h": 247.742,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.36046,
    "c": 0.18638,
    "h": 277.3
  },
  "luminance": 0.03951
}

Semantic roles & 50–950 ramp

primary

#2F1F9B

secondary

#B3C155

accent

#EA3ED3

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2F1F9B

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

Preview Lab → · Contrast checker → · Palette generator →