#1C105C#1C105C

#1C105C is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.4% C 0.126 H 279.7°. Best body text is #FFFFFF at 16.43:1 contrast (WCAG AA passes).

Color values

HEX	#1C105C
RGB	rgb(28, 16, 92)
HSL	hsl(249, 70%, 21%)
HSV	hsv(249, 83%, 36%)
CMYK	cmyk(69.6%, 82.6%, 0%, 63.9%)
CIE-LAB	lab(11.89, 30.34, -42.91)
CIE-LCH	lch(11.89, 52.55, 305.27°)
OKLab	oklab(25.39% 0.0213 -0.1239)
OKLCH	oklch(25.39% 0.126 279.7)
XYZ	xyz(2.5953, 1.3900, 10.2547)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C105C #505C10

analogous

#102A5C #1C105C #42105C

triadic

#1C105C #5C1C10 #105C1C

tetradic

#1C105C #5C102A #505C10 #105C42

square

#1C105C #5C102A #505C10 #105C42

split-complementary

#1C105C #5C4210 #2A5C10

monochromatic

#08051A #0C0728 #1C105C #2C1990 #3C22C4

Accessibility & contrast

On white

16.43

#1C105C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#1C105C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C105C

16.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C105C	#FFFFFF	#000000	##FFFFFF
##1C105C	1.00	16.43	1.28	16.43
#FFFFFF	16.43	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00225E

Deuteranopia (green-blind)

#001C5B

Tritanopia (blue-blind)

#002635

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #1c105c;
/* rgb */ color: rgb(28, 16, 92);
/* oklch */ color: oklch(25.4% 0.126 279.7);

Tailwind

colors: {
  custom: {
    50: '#63508b',
    500: '#1c105c',
    950: '#000000',
  },
}

SCSS

$custom: #1c105c;
$custom-light: #63508b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c105c",
  "rgb": {
    "r": 28,
    "g": 16,
    "b": 92
  },
  "hsl": {
    "h": 249.474,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.25387,
    "c": 0.12568,
    "h": 279.7
  },
  "luminance": 0.0139
}

Semantic roles & 50–950 ramp

primary

#1C105C

secondary

#869533

accent

#ED3BD1

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1C105C

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

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