#1C105F#1C105F

#1C105F is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.7% C 0.130 H 279.0°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#1C105F
RGB	rgb(28, 16, 95)
HSL	hsl(249, 71%, 22%)
HSV	hsv(249, 83%, 37%)
CMYK	cmyk(70.5%, 83.2%, 0%, 62.7%)
CIE-LAB	lab(12.24, 31.37, -44.34)
CIE-LCH	lch(12.24, 54.31, 305.28°)
OKLab	oklab(25.74% 0.0204 -0.128)
OKLCH	oklch(25.74% 0.13 279)
XYZ	xyz(2.7291, 1.4435, 10.9591)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C105F #535F10

analogous

#102C5F #1C105F #44105F

triadic

#1C105F #5F1C10 #105F1C

tetradic

#1C105F #5F102C #535F10 #105F44

square

#1C105F #5F102C #535F10 #105F44

split-complementary

#1C105F #5F4410 #2C5F10

monochromatic

#08041A #0D072B #1C105F #2B1993 #3B22C8

Accessibility & contrast

On white

16.29

#1C105F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#1C105F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C105F

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C105F	#FFFFFF	#000000	##FFFFFF
##1C105F	1.00	16.29	1.29	16.29
#FFFFFF	16.29	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002361

Deuteranopia (green-blind)

#001D5E

Tritanopia (blue-blind)

#002837

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1c105f;
/* rgb */ color: rgb(28, 16, 95);
/* oklch */ color: oklch(25.7% 0.130 279.0);

Tailwind

colors: {
  custom: {
    50: '#64508d',
    500: '#1c105f',
    950: '#000000',
  },
}

SCSS

$custom: #1c105f;
$custom-light: #64508d;
$custom-dark: #000000;

JSON

{
  "hex": "#1c105f",
  "rgb": {
    "r": 28,
    "g": 16,
    "b": 95
  },
  "hsl": {
    "h": 249.114,
    "s": 71.171,
    "l": 21.765
  },
  "oklch": {
    "l": 0.25739,
    "c": 0.12964,
    "h": 279
  },
  "luminance": 0.01444
}

Semantic roles & 50–950 ramp

primary

#1C105F

secondary

#899833

accent

#EE3AD3

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1C105F

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

Preview Lab → · Contrast checker → · Palette generator →