#1B012E#1B012E

#1B012E is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 17.7% C 0.088 H 306.5°. Best body text is #FFFFFF at 19.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B012E
RGB	rgb(27, 1, 46)
HSL	hsl(275, 96%, 9%)
HSV	hsv(275, 98%, 18%)
CMYK	cmyk(41.3%, 97.8%, 0%, 82%)
CIE-LAB	lab(4.08, 21.36, -23.12)
CIE-LCH	lch(4.08, 31.48, 312.73°)
OKLab	oklab(17.71% 0.0521 -0.0704)
OKLCH	oklch(17.71% 0.088 306.5)
XYZ	xyz(0.9559, 0.4520, 2.6211)
Luminance	0.0045 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B012E #142E01

analogous

#05012E #1B012E #2E012B

triadic

#1B012E #2E1B01 #012E1B

tetradic

#1B012E #2E0501 #142E01 #012B2E

square

#1B012E #2E0501 #142E01 #012B2E

split-complementary

#1B012E #2B2E01 #012E05

monochromatic

#12011E #12011E #1B012E #3E026A #6104A6

Accessibility & contrast

On white

19.26

#1B012E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#1B012E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B012E

19.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B012E	#FFFFFF	#000000	##FFFFFF
##1B012E	1.00	19.26	1.09	19.26
#FFFFFF	19.26	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D2F

Deuteranopia (green-blind)

#000E2D

Tritanopia (blue-blind)

#180B17

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #1b012e;
/* rgb */ color: rgb(27, 1, 46);
/* oklch */ color: oklch(17.7% 0.088 306.5);

Tailwind

colors: {
  custom: {
    50: '#594667',
    500: '#1b012e',
    950: '#000000',
  },
}

SCSS

$custom: #1b012e;
$custom-light: #594667;
$custom-dark: #000000;

JSON

{
  "hex": "#1b012e",
  "rgb": {
    "r": 27,
    "g": 1,
    "b": 46
  },
  "hsl": {
    "h": 274.667,
    "s": 95.745,
    "l": 9.216
  },
  "oklch": {
    "l": 0.17713,
    "c": 0.08754,
    "h": 306.5
  },
  "luminance": 0.00452
}

Semantic roles & 50–950 ramp

primary

#1B012E

secondary

#3E7417

accent

#FF2983

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1B012E

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

Preview Lab → · Contrast checker → · Palette generator →