#1C1683#1C1683

#1C1683 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.170 H 272.6°. Best body text is #FFFFFF at 14.08:1 contrast (WCAG AA passes).

Color values

HEX	#1C1683
RGB	rgb(28, 22, 131)
HSL	hsl(243, 71%, 30%)
HSV	hsv(243, 83%, 51%)
CMYK	cmyk(78.6%, 83.2%, 0%, 48.6%)
CIE-LAB	lab(17.73, 40.20, -58.64)
CIE-LCH	lch(17.73, 71.10, 304.43°)
OKLab	oklab(30.84% 0.0077 -0.1697)
OKLCH	oklch(30.84% 0.17 272.6)
XYZ	xyz(4.8612, 2.4589, 21.6867)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1683 #7D8316

analogous

#164683 #1C1683 #531683

triadic

#1C1683 #831C16 #16831C

tetradic

#1C1683 #831646 #7D8316 #168353

square

#1C1683 #831646 #7D8316 #168353

split-complementary

#1C1683 #835316 #468316

monochromatic

#06041A #110D4F #1C1683 #271FB7 #3F36DD

Accessibility & contrast

On white

14.08

#1C1683 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1C1683 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1683

14.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1683	#FFFFFF	#000000	##FFFFFF
##1C1683	1.00	14.08	1.49	14.08
#FFFFFF	14.08	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003186

Deuteranopia (green-blind)

#002681

Tritanopia (blue-blind)

#00384D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1c1683;
/* rgb */ color: rgb(28, 22, 131);
/* oklch */ color: oklch(30.8% 0.170 272.6);

Tailwind

colors: {
  custom: {
    50: '#6c56a8',
    500: '#1c1683',
    950: '#000000',
  },
}

SCSS

$custom: #1c1683;
$custom-light: #6c56a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1683",
  "rgb": {
    "r": 28,
    "g": 22,
    "b": 131
  },
  "hsl": {
    "h": 243.303,
    "s": 71.242,
    "l": 30
  },
  "oklch": {
    "l": 0.30844,
    "c": 0.16985,
    "h": 272.6
  },
  "luminance": 0.02459
}

Semantic roles & 50–950 ramp

primary

#1C1683

secondary

#B1B73D

accent

#EE3AE4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1C1683

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

Preview Lab → · Contrast checker → · Palette generator →