#1B103D#1B103D

#1B103D is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.9% C 0.082 H 289.1°. Best body text is #FFFFFF at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#1B103D
RGB	rgb(27, 16, 61)
HSL	hsl(255, 58%, 15%)
HSV	hsv(255, 74%, 24%)
CMYK	cmyk(55.7%, 73.8%, 0%, 76.1%)
CIE-LAB	lab(8.49, 19.30, -27.02)
CIE-LCH	lch(8.49, 33.20, 305.53°)
OKLab	oklab(21.93% 0.0268 -0.0774)
OKLCH	oklch(21.93% 0.082 289.1)
XYZ	xyz(1.4793, 0.9405, 4.5176)
Luminance	0.0094 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B103D #323D10

analogous

#101B3D #1B103D #32103D

triadic

#1B103D #3D1B10 #103D1B

tetradic

#1B103D #3D101B #323D10 #103D32

square

#1B103D #3D101B #323D10 #103D32

split-complementary

#1B103D #3D3210 #1B3D10

monochromatic

#0B0618 #0B0618 #1B103D #301D6D #46299E

Accessibility & contrast

On white

17.67

#1B103D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#1B103D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B103D

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B103D	#FFFFFF	#000000	##FFFFFF
##1B103D	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)

#00193E

Deuteranopia (green-blind)

#00173C

Tritanopia (blue-blind)

#101B24

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #1b103d;
/* rgb */ color: rgb(27, 16, 61);
/* oklch */ color: oklch(21.9% 0.082 289.1);

Tailwind

colors: {
  custom: {
    50: '#5b4e73',
    500: '#1b103d',
    950: '#000000',
  },
}

SCSS

$custom: #1b103d;
$custom-light: #5b4e73;
$custom-dark: #000000;

JSON

{
  "hex": "#1b103d",
  "rgb": {
    "r": 27,
    "g": 16,
    "b": 61
  },
  "hsl": {
    "h": 254.667,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.21934,
    "c": 0.0819,
    "h": 289.1
  },
  "luminance": 0.00941
}

Semantic roles & 50–950 ramp

primary

#1B103D

secondary

#667732

accent

#E246BC

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #1B103D

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

Preview Lab → · Contrast checker → · Palette generator →