#1C1C8A#1C1C8A

#1C1C8A is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.173 H 271.3°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#1C1C8A
RGB	rgb(28, 28, 138)
HSL	hsl(240, 66%, 33%)
HSV	hsv(240, 80%, 54%)
CMYK	cmyk(79.7%, 79.7%, 0%, 45.9%)
CIE-LAB	lab(19.69, 39.34, -59.81)
CIE-LCH	lch(19.69, 71.58, 303.33°)
OKLab	oklab(32.46% 0.0041 -0.1731)
OKLCH	oklch(32.46% 0.173 271.3)
XYZ	xyz(5.4800, 2.9118, 24.3130)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1C8A #8A8A1C

analogous

#1C538A #1C1C8A #531C8A

triadic

#1C1C8A #8A1C1C #1C8A1C

tetradic

#1C1C8A #8A1C53 #8A8A1C #1C8A53

square

#1C1C8A #8A1C53 #8A8A1C #1C8A53

split-complementary

#1C1C8A #8A531C #538A1C

monochromatic

#070724 #121257 #1C1C8A #2626BD #4747DA

Accessibility & contrast

On white

13.27

#1C1C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1C1C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1C8A

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1C8A	#FFFFFF	#000000	##FFFFFF
##1C1C8A	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358D

Deuteranopia (green-blind)

#002A88

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1c1c8a;
/* rgb */ color: rgb(28, 28, 138);
/* oklch */ color: oklch(32.5% 0.173 271.3);

Tailwind

colors: {
  custom: {
    50: '#6e5aad',
    500: '#1c1c8a',
    950: '#000000',
  },
}

SCSS

$custom: #1c1c8a;
$custom-light: #6e5aad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1c8a",
  "rgb": {
    "r": 28,
    "g": 28,
    "b": 138
  },
  "hsl": {
    "h": 240,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32457,
    "c": 0.1732,
    "h": 271.3
  },
  "luminance": 0.02912
}

Semantic roles & 50–950 ramp

primary

#1C1C8A

secondary

#BBBB46

accent

#E93FE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1C1C8A

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

Preview Lab → · Contrast checker → · Palette generator →