#1C108E#1C108E

#1C108E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.6% C 0.187 H 271.9°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#1C108E
RGB	rgb(28, 16, 142)
HSL	hsl(246, 80%, 31%)
HSV	hsv(246, 89%, 56%)
CMYK	cmyk(80.3%, 88.7%, 0%, 44.3%)
CIE-LAB	lab(18.23, 46.37, -64.72)
CIE-LCH	lch(18.23, 79.62, 305.62°)
OKLab	oklab(31.59% 0.0062 -0.1872)
OKLCH	oklch(31.59% 0.187 271.9)
XYZ	xyz(5.5450, 2.5698, 25.7897)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C108E #828E10

analogous

#10438E #1C108E #5B108E

triadic

#1C108E #8E1C10 #108E1C

tetradic

#1C108E #8E1043 #828E10 #108E5B

square

#1C108E #8E1043 #828E10 #108E5B

split-complementary

#1C108E #8E5B10 #438E10

monochromatic

#060420 #110A57 #1C108E #2716C5 #4231E8

Accessibility & contrast

On white

13.87

#1C108E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1C108E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C108E

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C108E	#FFFFFF	#000000	##FFFFFF
##1C108E	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003291

Deuteranopia (green-blind)

#00268C

Tritanopia (blue-blind)

#003B53

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1c108e;
/* rgb */ color: rgb(28, 16, 142);
/* oklch */ color: oklch(31.6% 0.187 271.9);

Tailwind

colors: {
  custom: {
    50: '#7054b1',
    500: '#1c108e',
    950: '#000000',
  },
}

SCSS

$custom: #1c108e;
$custom-light: #7054b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c108e",
  "rgb": {
    "r": 28,
    "g": 16,
    "b": 142
  },
  "hsl": {
    "h": 245.714,
    "s": 79.747,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31593,
    "c": 0.18726,
    "h": 271.9
  },
  "luminance": 0.0257
}

Semantic roles & 50–950 ramp

primary

#1C108E

secondary

#B5C337

accent

#F632E3

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1C108E

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

Preview Lab → · Contrast checker → · Palette generator →