#1B0F4D#1B0F4D

#1B0F4D is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.4% C 0.107 H 283.3°. Best body text is #FFFFFF at 17.18:1 contrast (WCAG AA passes).

Color values

HEX	#1B0F4D
RGB	rgb(27, 15, 77)
HSL	hsl(252, 67%, 18%)
HSV	hsv(252, 81%, 30%)
CMYK	cmyk(64.9%, 80.5%, 0%, 69.8%)
CIE-LAB	lab(9.88, 25.61, -36.00)
CIE-LCH	lch(9.88, 44.18, 305.43°)
OKLab	oklab(23.43% 0.0246 -0.1037)
OKLCH	oklch(23.43% 0.107 283.3)
XYZ	xyz(1.9620, 1.1104, 7.1307)
Luminance	0.0111 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.08

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0F4D #414D0F

analogous

#0F224D #1B0F4D #3A0F4D

triadic

#1B0F4D #4D1B0F #0F4D1B

tetradic

#1B0F4D #4D0F22 #414D0F #0F4D3A

square

#1B0F4D #4D0F22 #414D0F #0F4D3A

split-complementary

#1B0F4D #4D3A0F #224D0F

monochromatic

#09051A #09051A #1B0F4D #2D1980 #3F23B3

Accessibility & contrast

On white

17.18

#1B0F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#1B0F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0F4D

17.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0F4D	#FFFFFF	#000000	##FFFFFF
##1B0F4D	1.00	17.18	1.22	17.18
#FFFFFF	17.18	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D4F

Deuteranopia (green-blind)

#00194C

Tritanopia (blue-blind)

#00202D

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #1b0f4d;
/* rgb */ color: rgb(27, 15, 77);
/* oklch */ color: oklch(23.4% 0.107 283.3);

Tailwind

colors: {
  custom: {
    50: '#5f4f80',
    500: '#1b0f4d',
    950: '#000000',
  },
}

SCSS

$custom: #1b0f4d;
$custom-light: #5f4f80;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0f4d",
  "rgb": {
    "r": 27,
    "g": 15,
    "b": 77
  },
  "hsl": {
    "h": 251.613,
    "s": 67.391,
    "l": 18.039
  },
  "oklch": {
    "l": 0.23434,
    "c": 0.1066,
    "h": 283.3
  },
  "luminance": 0.0111
}

Semantic roles & 50–950 ramp

primary

#1B0F4D

secondary

#768731

accent

#EA3EC9

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1B0F4D

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

Preview Lab → · Contrast checker → · Palette generator →