#1C104B#1C104B

#1C104B is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.5% C 0.102 H 284.6°. Best body text is #FFFFFF at 17.14:1 contrast (WCAG AA passes).

Color values

HEX	#1C104B
RGB	rgb(28, 16, 75)
HSL	hsl(252, 65%, 18%)
HSV	hsv(252, 79%, 29%)
CMYK	cmyk(62.7%, 78.7%, 0%, 70.6%)
CIE-LAB	lab(9.99, 24.45, -34.42)
CIE-LCH	lch(9.99, 42.22, 305.39°)
OKLab	oklab(23.48% 0.0259 -0.0991)
OKLCH	oklch(23.48% 0.102 284.6)
XYZ	xyz(1.9338, 1.1253, 6.7706)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C104B #3F4B10

analogous

#10224B #1C104B #39104B

triadic

#1C104B #4B1C10 #104B1C

tetradic

#1C104B #4B1022 #3F4B10 #104B39

square

#1C104B #4B1022 #3F4B10 #104B39

split-complementary

#1C104B #4B3910 #224B10

monochromatic

#090519 #090519 #1C104B #2F1B7D #4226B0

Accessibility & contrast

On white

17.14

#1C104B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#1C104B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C104B

17.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C104B	#FFFFFF	#000000	##FFFFFF
##1C104B	1.00	17.14	1.22	17.14
#FFFFFF	17.14	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D4D

Deuteranopia (green-blind)

#001A4A

Tritanopia (blue-blind)

#05202C

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #1c104b;
/* rgb */ color: rgb(28, 16, 75);
/* oklch */ color: oklch(23.5% 0.102 284.6);

Tailwind

colors: {
  custom: {
    50: '#5f4f7e',
    500: '#1c104b',
    950: '#000000',
  },
}

SCSS

$custom: #1c104b;
$custom-light: #5f4f7e;
$custom-dark: #000000;

JSON

{
  "hex": "#1c104b",
  "rgb": {
    "r": 28,
    "g": 16,
    "b": 75
  },
  "hsl": {
    "h": 252.203,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.23477,
    "c": 0.10238,
    "h": 284.6
  },
  "luminance": 0.01125
}

Semantic roles & 50–950 ramp

primary

#1C104B

secondary

#748532

accent

#E840C6

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1C104B

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

Preview Lab → · Contrast checker → · Palette generator →