#1B052F#1B052F

#1B052F is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.6% C 0.080 H 303.7°. Best body text is #FFFFFF at 18.93:1 contrast (WCAG AA passes).

Color values

HEX	#1B052F
RGB	rgb(27, 5, 47)
HSL	hsl(271, 81%, 10%)
HSV	hsv(271, 89%, 18%)
CMYK	cmyk(42.6%, 89.4%, 0%, 81.6%)
CIE-LAB	lab(4.94, 20.00, -22.51)
CIE-LCH	lch(4.94, 30.11, 311.62°)
OKLab	oklab(18.62% 0.0444 -0.0666)
OKLCH	oklch(18.62% 0.08 303.7)
XYZ	xyz(1.0192, 0.5468, 2.7406)
Luminance	0.0055 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B052F #192F05

analogous

#06052F #1B052F #2F052E

triadic

#1B052F #2F1B05 #052F1B

tetradic

#1B052F #2F0605 #192F05 #052E2F

square

#1B052F #2F0605 #192F05 #052E2F

split-complementary

#1B052F #2E2F05 #052F06

monochromatic

#10031C #10031C #1B052F #3B0B66 #5B119E

Accessibility & contrast

On white

18.93

#1B052F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#1B052F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B052F

18.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B052F	#FFFFFF	#000000	##FFFFFF
##1B052F	1.00	18.93	1.11	18.93
#FFFFFF	18.93	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001030

Deuteranopia (green-blind)

#00112E

Tritanopia (blue-blind)

#170F19

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #1b052f;
/* rgb */ color: rgb(27, 5, 47);
/* oklch */ color: oklch(18.6% 0.080 303.7);

Tailwind

colors: {
  custom: {
    50: '#594868',
    500: '#1b052f',
    950: '#000000',
  },
}

SCSS

$custom: #1b052f;
$custom-light: #594868;
$custom-dark: #000000;

JSON

{
  "hex": "#1b052f",
  "rgb": {
    "r": 27,
    "g": 5,
    "b": 47
  },
  "hsl": {
    "h": 271.429,
    "s": 80.769,
    "l": 10.196
  },
  "oklch": {
    "l": 0.18618,
    "c": 0.08007,
    "h": 303.7
  },
  "luminance": 0.00547
}

Semantic roles & 50–950 ramp

primary

#1B052F

secondary

#46711F

accent

#F7318F

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1B052F

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

Preview Lab → · Contrast checker → · Palette generator →