#1F0F48#1F0F48

#1F0F48 is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.3% C 0.099 H 289.2°. Best body text is #FFFFFF at 17.21:1 contrast (WCAG AA passes).

Color values

HEX	#1F0F48
RGB	rgb(31, 15, 72)
HSL	hsl(257, 66%, 17%)
HSV	hsv(257, 79%, 28%)
CMYK	cmyk(56.9%, 79.2%, 0%, 71.8%)
CIE-LAB	lab(9.80, 24.60, -32.63)
CIE-LCH	lch(9.80, 40.86, 307.02°)
OKLab	oklab(23.33% 0.0327 -0.0937)
OKLCH	oklch(23.33% 0.099 289.2)
XYZ	xyz(1.9053, 1.1007, 6.2417)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0F48 #38480F

analogous

#0F1C48 #1F0F48 #3C0F48

triadic

#1F0F48 #481F0F #0F481F

tetradic

#1F0F48 #480F1C #38480F #0F483C

square

#1F0F48 #480F1C #38480F #0F483C

split-complementary

#1F0F48 #483C0F #1C480F

monochromatic

#0B0519 #0B0519 #1F0F48 #351A7B #4B24AD

Accessibility & contrast

On white

17.21

#1F0F48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#1F0F48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0F48

17.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0F48	#FFFFFF	#000000	##FFFFFF
##1F0F48	1.00	17.21	1.22	17.21
#FFFFFF	17.21	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C4A

Deuteranopia (green-blind)

#001A47

Tritanopia (blue-blind)

#101E2A

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #1f0f48;
/* rgb */ color: rgb(31, 15, 72);
/* oklch */ color: oklch(23.3% 0.099 289.2);

Tailwind

colors: {
  custom: {
    50: '#604f7c',
    500: '#1f0f48',
    950: '#000000',
  },
}

SCSS

$custom: #1f0f48;
$custom-light: #604f7c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0f48",
  "rgb": {
    "r": 31,
    "g": 15,
    "b": 72
  },
  "hsl": {
    "h": 256.842,
    "s": 65.517,
    "l": 17.059
  },
  "oklch": {
    "l": 0.23329,
    "c": 0.09922,
    "h": 289.2
  },
  "luminance": 0.01101
}

Semantic roles & 50–950 ramp

primary

#1F0F48

secondary

#6B8230

accent

#E83FB9

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#050209

muted

#79787B

Preview Lab

Preview with #1F0F48

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

Preview Lab → · Contrast checker → · Palette generator →