#1B103F#1B103F

#1B103F is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.1% C 0.085 H 288.2°. Best body text is #FFFFFF at 17.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B103F
RGB	rgb(27, 16, 63)
HSL	hsl(254, 59%, 15%)
HSV	hsv(254, 75%, 25%)
CMYK	cmyk(57.1%, 74.6%, 0%, 75.3%)
CIE-LAB	lab(8.67, 20.01, -28.14)
CIE-LCH	lch(8.67, 34.53, 305.41°)
OKLab	oklab(22.13% 0.0265 -0.0807)
OKLCH	oklch(22.13% 0.085 288.2)
XYZ	xyz(1.5342, 0.9624, 4.8066)
Luminance	0.0096 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Navy Blue (survey)

#001146

ΔE00 5.07

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B103F #343F10

analogous

#101C3F #1B103F #32103F

triadic

#1B103F #3F1B10 #103F1B

tetradic

#1B103F #3F101C #343F10 #103F32

square

#1B103F #3F101C #343F10 #103F32

split-complementary

#1B103F #3F3210 #1C3F10

monochromatic

#0A0618 #0A0618 #1B103F #301C70 #4529A1

Accessibility & contrast

On white

17.61

#1B103F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#1B103F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B103F

17.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B103F	#FFFFFF	#000000	##FFFFFF
##1B103F	1.00	17.61	1.19	17.61
#FFFFFF	17.61	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A40

Deuteranopia (green-blind)

#00183E

Tritanopia (blue-blind)

#0E1C25

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1b103f;
/* rgb */ color: rgb(27, 16, 63);
/* oklch */ color: oklch(22.1% 0.085 288.2);

Tailwind

colors: {
  custom: {
    50: '#5c4f74',
    500: '#1b103f',
    950: '#000000',
  },
}

SCSS

$custom: #1b103f;
$custom-light: #5c4f74;
$custom-dark: #000000;

JSON

{
  "hex": "#1b103f",
  "rgb": {
    "r": 27,
    "g": 16,
    "b": 63
  },
  "hsl": {
    "h": 254.043,
    "s": 59.494,
    "l": 15.49
  },
  "oklch": {
    "l": 0.2213,
    "c": 0.08493,
    "h": 288.2
  },
  "luminance": 0.00962
}

Semantic roles & 50–950 ramp

primary

#1B103F

secondary

#687932

accent

#E345BE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #1B103F

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

Preview Lab → · Contrast checker → · Palette generator →