#1F0F47#1F0F47

#1F0F47 is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.2% C 0.098 H 289.6°. Best body text is #FFFFFF at 17.25:1 contrast (WCAG AA passes).

Color values

HEX	#1F0F47
RGB	rgb(31, 15, 71)
HSL	hsl(257, 65%, 17%)
HSV	hsv(257, 79%, 28%)
CMYK	cmyk(56.3%, 78.9%, 0%, 72.2%)
CIE-LAB	lab(9.70, 24.26, -32.09)
CIE-LCH	lch(9.70, 40.23, 307.09°)
OKLab	oklab(23.23% 0.0329 -0.0921)
OKLCH	oklch(23.23% 0.098 289.6)
XYZ	xyz(1.8729, 1.0878, 6.0713)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0F47 #37470F

analogous

#0F1B47 #1F0F47 #3B0F47

triadic

#1F0F47 #471F0F #0F471F

tetradic

#1F0F47 #470F1B #37470F #0F473B

square

#1F0F47 #470F1B #37470F #0F473B

split-complementary

#1F0F47 #473B0F #1B470F

monochromatic

#0B0519 #0B0519 #1F0F47 #351A7A #4B24AC

Accessibility & contrast

On white

17.25

#1F0F47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#1F0F47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0F47

17.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0F47	#FFFFFF	#000000	##FFFFFF
##1F0F47	1.00	17.25	1.22	17.25
#FFFFFF	17.25	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C49

Deuteranopia (green-blind)

#001A46

Tritanopia (blue-blind)

#111E29

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #1f0f47;
/* rgb */ color: rgb(31, 15, 71);
/* oklch */ color: oklch(23.2% 0.098 289.6);

Tailwind

colors: {
  custom: {
    50: '#604f7b',
    500: '#1f0f47',
    950: '#000000',
  },
}

SCSS

$custom: #1f0f47;
$custom-light: #604f7b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0f47",
  "rgb": {
    "r": 31,
    "g": 15,
    "b": 71
  },
  "hsl": {
    "h": 257.143,
    "s": 65.116,
    "l": 16.863
  },
  "oklch": {
    "l": 0.23225,
    "c": 0.09782,
    "h": 289.6
  },
  "luminance": 0.01088
}

Semantic roles & 50–950 ramp

primary

#1F0F47

secondary

#6A8130

accent

#E840B8

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#050209

muted

#79787B

Preview Lab

Preview with #1F0F47

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

Preview Lab → · Contrast checker → · Palette generator →