#1B0F4F#1B0F4F

#1B0F4F is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.7% C 0.109 H 282.7°. Best body text is #FFFFFF at 17.10:1 contrast (WCAG AA passes).

Color values

HEX	#1B0F4F
RGB	rgb(27, 15, 79)
HSL	hsl(251, 68%, 18%)
HSV	hsv(251, 81%, 31%)
CMYK	cmyk(65.8%, 81%, 0%, 69%)
CIE-LAB	lab(10.10, 26.31, -37.02)
CIE-LCH	lch(10.10, 45.41, 305.41°)
OKLab	oklab(23.66% 0.0241 -0.1067)
OKLCH	oklch(23.66% 0.109 282.7)
XYZ	xyz(2.0337, 1.1390, 7.5083)
Luminance	0.0114 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0F4F #434F0F

analogous

#0F234F #1B0F4F #3B0F4F

triadic

#1B0F4F #4F1B0F #0F4F1B

tetradic

#1B0F4F #4F0F23 #434F0F #0F4F3B

square

#1B0F4F #4F0F23 #434F0F #0F4F3B

split-complementary

#1B0F4F #4F3B0F #234F0F

monochromatic

#09051A #09051C #1B0F4F #2D1982 #3E23B6

Accessibility & contrast

On white

17.10

#1B0F4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#1B0F4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0F4F

17.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0F4F	#FFFFFF	#000000	##FFFFFF
##1B0F4F	1.00	17.10	1.23	17.10
#FFFFFF	17.10	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E51

Deuteranopia (green-blind)

#00194E

Tritanopia (blue-blind)

#00212E

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #1b0f4f;
/* rgb */ color: rgb(27, 15, 79);
/* oklch */ color: oklch(23.7% 0.109 282.7);

Tailwind

colors: {
  custom: {
    50: '#5f4f81',
    500: '#1b0f4f',
    950: '#000000',
  },
}

SCSS

$custom: #1b0f4f;
$custom-light: #5f4f81;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0f4f",
  "rgb": {
    "r": 27,
    "g": 15,
    "b": 79
  },
  "hsl": {
    "h": 251.25,
    "s": 68.085,
    "l": 18.431
  },
  "oklch": {
    "l": 0.23658,
    "c": 0.10938,
    "h": 282.7
  },
  "luminance": 0.01139
}

Semantic roles & 50–950 ramp

primary

#1B0F4F

secondary

#798931

accent

#EB3DCA

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1B0F4F

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

Preview Lab → · Contrast checker → · Palette generator →