#1C1690#1C1690

#1C1690 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.4% C 0.185 H 271.4°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#1C1690
RGB	rgb(28, 22, 144)
HSL	hsl(243, 73%, 33%)
HSV	hsv(243, 85%, 56%)
CMYK	cmyk(80.6%, 84.7%, 0%, 43.5%)
CIE-LAB	lab(19.37, 44.39, -64.09)
CIE-LCH	lch(19.37, 77.96, 304.71°)
OKLab	oklab(32.45% 0.0044 -0.1854)
OKLCH	oklch(32.45% 0.186 271.4)
XYZ	xyz(5.7981, 2.8337, 26.6215)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1690 #8A9016

analogous

#164D90 #1C1690 #591690

triadic

#1C1690 #901C16 #16901C

tetradic

#1C1690 #90164D #8A9016 #169059

square

#1C1690 #90164D #8A9016 #169059

split-complementary

#1C1690 #905916 #4D9016

monochromatic

#070626 #120E5B #1C1690 #261EC5 #473FE2

Accessibility & contrast

On white

13.40

#1C1690 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1C1690 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1690

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1690	#FFFFFF	#000000	##FFFFFF
##1C1690	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003593

Deuteranopia (green-blind)

#00298E

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1c1690;
/* rgb */ color: rgb(28, 22, 144);
/* oklch */ color: oklch(32.4% 0.185 271.4);

Tailwind

colors: {
  custom: {
    50: '#7057b2',
    500: '#1c1690',
    950: '#000000',
  },
}

SCSS

$custom: #1c1690;
$custom-light: #7057b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1690",
  "rgb": {
    "r": 28,
    "g": 22,
    "b": 144
  },
  "hsl": {
    "h": 242.951,
    "s": 73.494,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32445,
    "c": 0.1855,
    "h": 271.4
  },
  "luminance": 0.02834
}

Semantic roles & 50–950 ramp

primary

#1C1690

secondary

#BBC240

accent

#F038E7

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1C1690

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

Preview Lab → · Contrast checker → · Palette generator →