#1B0339#1B0339

#1B0339 is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.3% C 0.096 H 297.0°. Best body text is #FFFFFF at 18.77:1 contrast (WCAG AA passes).

Color values

HEX	#1B0339
RGB	rgb(27, 3, 57)
HSL	hsl(267, 90%, 12%)
HSV	hsv(267, 95%, 22%)
CMYK	cmyk(52.6%, 94.7%, 0%, 77.6%)
CIE-LAB	lab(5.36, 25.09, -29.21)
CIE-LCH	lch(5.36, 38.51, 310.66°)
OKLab	oklab(19.35% 0.0437 -0.0855)
OKLCH	oklch(19.35% 0.096 297)
XYZ	xyz(1.2229, 0.5935, 3.9202)
Luminance	0.0059 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.14

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0339 #213903

analogous

#030639 #1B0339 #360339

triadic

#1B0339 #391B03 #03391B

tetradic

#1B0339 #390306 #213903 #033936

square

#1B0339 #390306 #213903 #033936

split-complementary

#1B0339 #393603 #063903

monochromatic

#0E021D #0E021D #1B0339 #370673 #5209AD

Accessibility & contrast

On white

18.77

#1B0339 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#1B0339 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0339

18.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0339	#FFFFFF	#000000	##FFFFFF
##1B0339	1.00	18.77	1.12	18.77
#FFFFFF	18.77	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00123A

Deuteranopia (green-blind)

#001138

Tritanopia (blue-blind)

#13121E

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #1b0339;
/* rgb */ color: rgb(27, 3, 57);
/* oklch */ color: oklch(19.3% 0.096 297.0);

Tailwind

colors: {
  custom: {
    50: '#5b4770',
    500: '#1b0339',
    950: '#000000',
  },
}

SCSS

$custom: #1b0339;
$custom-light: #5b4770;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0339",
  "rgb": {
    "r": 27,
    "g": 3,
    "b": 57
  },
  "hsl": {
    "h": 266.667,
    "s": 90,
    "l": 11.765
  },
  "oklch": {
    "l": 0.19346,
    "c": 0.09602,
    "h": 297
  },
  "luminance": 0.00594
}

Semantic roles & 50–950 ramp

primary

#1B0339

secondary

#517C1C

accent

#FF29A0

background

#F5F4F6

surface

#E9E6EC

border

#C5C2C7

text

#040007

muted

#79777A

Preview Lab

Preview with #1B0339

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

Preview Lab → · Contrast checker → · Palette generator →