#1C105E#1C105E

#1C105E is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.6% C 0.128 H 279.3°. Best body text is #FFFFFF at 16.34:1 contrast (WCAG AA passes).

Color values

HEX	#1C105E
RGB	rgb(28, 16, 94)
HSL	hsl(249, 71%, 22%)
HSV	hsv(249, 83%, 37%)
CMYK	cmyk(70.2%, 83%, 0%, 63.1%)
CIE-LAB	lab(12.13, 31.03, -43.86)
CIE-LCH	lch(12.13, 53.73, 305.27°)
OKLab	oklab(25.62% 0.0207 -0.1267)
OKLCH	oklch(25.62% 0.128 279.3)
XYZ	xyz(2.6839, 1.4254, 10.7212)
Luminance	0.0143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C105E #525E10

analogous

#102B5E #1C105E #43105E

triadic

#1C105E #5E1C10 #105E1C

tetradic

#1C105E #5E102B #525E10 #105E43

square

#1C105E #5E102B #525E10 #105E43

split-complementary

#1C105E #5E4310 #2B5E10

monochromatic

#08041A #0C072A #1C105E #2C1992 #3B22C7

Accessibility & contrast

On white

16.34

#1C105E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#1C105E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C105E

16.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C105E	#FFFFFF	#000000	##FFFFFF
##1C105E	1.00	16.34	1.29	16.34
#FFFFFF	16.34	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002360

Deuteranopia (green-blind)

#001D5D

Tritanopia (blue-blind)

#002737

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1c105e;
/* rgb */ color: rgb(28, 16, 94);
/* oklch */ color: oklch(25.6% 0.128 279.3);

Tailwind

colors: {
  custom: {
    50: '#63508d',
    500: '#1c105e',
    950: '#000000',
  },
}

SCSS

$custom: #1c105e;
$custom-light: #63508d;
$custom-dark: #000000;

JSON

{
  "hex": "#1c105e",
  "rgb": {
    "r": 28,
    "g": 16,
    "b": 94
  },
  "hsl": {
    "h": 249.231,
    "s": 70.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.25621,
    "c": 0.12833,
    "h": 279.3
  },
  "luminance": 0.01426
}

Semantic roles & 50–950 ramp

primary

#1C105E

secondary

#889733

accent

#EE3AD2

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1C105E

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

Preview Lab → · Contrast checker → · Palette generator →