#1B1237#1B1237

#1B1237 is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.8% C 0.069 H 290.7°. Best body text is #FFFFFF at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#1B1237
RGB	rgb(27, 18, 55)
HSL	hsl(255, 51%, 14%)
HSV	hsv(255, 67%, 22%)
CMYK	cmyk(50.9%, 67.3%, 0%, 78.4%)
CIE-LAB	lab(8.49, 15.74, -22.69)
CIE-LCH	lch(8.49, 27.62, 304.75°)
OKLab	oklab(21.77% 0.0245 -0.0646)
OKLCH	oklch(21.77% 0.069 290.7)
XYZ	xyz(1.3577, 0.9414, 3.7239)
Luminance	0.0094 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight

#03012D

ΔE00 5.48

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1237 #2E3712

analogous

#121C37 #1B1237 #2E1237

triadic

#1B1237 #371B12 #12371B

tetradic

#1B1237 #37121C #2E3712 #12372E

square

#1B1237 #37121C #2E3712 #12372E

split-complementary

#1B1237 #372E12 #1C3712

monochromatic

#0B0817 #0B0817 #1B1237 #322165 #483093

Accessibility & contrast

On white

17.67

#1B1237 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#1B1237 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1237

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1237	#FFFFFF	#000000	##FFFFFF
##1B1237	1.00	17.67	1.19	17.67
#FFFFFF	17.67	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011938

Deuteranopia (green-blind)

#021836

Tritanopia (blue-blind)

#131A22

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #1b1237;
/* rgb */ color: rgb(27, 18, 55);
/* oklch */ color: oklch(21.8% 0.069 290.7);

Tailwind

colors: {
  custom: {
    50: '#5a506e',
    500: '#1b1237',
    950: '#000000',
  },
}

SCSS

$custom: #1b1237;
$custom-light: #5a506e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1237",
  "rgb": {
    "r": 27,
    "g": 18,
    "b": 55
  },
  "hsl": {
    "h": 254.595,
    "s": 50.685,
    "l": 14.314
  },
  "oklch": {
    "l": 0.21773,
    "c": 0.06912,
    "h": 290.7
  },
  "luminance": 0.00941
}

Semantic roles & 50–950 ramp

primary

#1B1237

secondary

#617035

accent

#DA4EB8

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040207

muted

#79787A

Preview Lab

Preview with #1B1237

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

Preview Lab → · Contrast checker → · Palette generator →