#1B103E#1B103E

#1B103E is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.0% C 0.083 H 288.6°. Best body text is #FFFFFF at 17.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B103E
RGB	rgb(27, 16, 62)
HSL	hsl(254, 59%, 15%)
HSV	hsv(254, 74%, 24%)
CMYK	cmyk(56.5%, 74.2%, 0%, 75.7%)
CIE-LAB	lab(8.58, 19.65, -27.58)
CIE-LCH	lch(8.58, 33.87, 305.47°)
OKLab	oklab(22.03% 0.0266 -0.079)
OKLCH	oklch(22.03% 0.083 288.6)
XYZ	xyz(1.5065, 0.9513, 4.6607)
Luminance	0.0095 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B103E #333E10

analogous

#101C3E #1B103E #32103E

triadic

#1B103E #3E1B10 #103E1B

tetradic

#1B103E #3E101C #333E10 #103E32

square

#1B103E #3E101C #333E10 #103E32

split-complementary

#1B103E #3E3210 #1C3E10

monochromatic

#0B0618 #0B0618 #1B103E #301D6F #45299F

Accessibility & contrast

On white

17.64

#1B103E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#1B103E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B103E

17.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B103E	#FFFFFF	#000000	##FFFFFF
##1B103E	1.00	17.64	1.19	17.64
#FFFFFF	17.64	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3F

Deuteranopia (green-blind)

#00173D

Tritanopia (blue-blind)

#0F1B25

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1b103e;
/* rgb */ color: rgb(27, 16, 62);
/* oklch */ color: oklch(22.0% 0.083 288.6);

Tailwind

colors: {
  custom: {
    50: '#5b4e74',
    500: '#1b103e',
    950: '#000000',
  },
}

SCSS

$custom: #1b103e;
$custom-light: #5b4e74;
$custom-dark: #000000;

JSON

{
  "hex": "#1b103e",
  "rgb": {
    "r": 27,
    "g": 16,
    "b": 62
  },
  "hsl": {
    "h": 254.348,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.22032,
    "c": 0.08342,
    "h": 288.6
  },
  "luminance": 0.00951
}

Semantic roles & 50–950 ramp

primary

#1B103E

secondary

#677832

accent

#E246BD

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #1B103E

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

Preview Lab → · Contrast checker → · Palette generator →