#1C186A#1C186A

#1C186A is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.2% C 0.136 H 275.4°. Best body text is #FFFFFF at 15.13:1 contrast (WCAG AA passes).

Color values

HEX	#1C186A
RGB	rgb(28, 24, 106)
HSL	hsl(243, 63%, 25%)
HSV	hsv(243, 77%, 42%)
CMYK	cmyk(73.6%, 77.4%, 0%, 58.4%)
CIE-LAB	lab(15.17, 30.49, -46.79)
CIE-LCH	lch(15.17, 55.84, 303.09°)
OKLab	oklab(28.18% 0.0127 -0.1352)
OKLCH	oklch(28.18% 0.136 275.4)
XYZ	xyz(3.4062, 1.9404, 13.8279)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C186A #666A18

analogous

#183D6A #1C186A #45186A

triadic

#1C186A #6A1C18 #186A1C

tetradic

#1C186A #6A183D #666A18 #186A45

square

#1C186A #6A183D #666A18 #186A45

split-complementary

#1C186A #6A4518 #3D6A18

monochromatic

#070619 #0F0D38 #1C186A #29239C #362FCE

Accessibility & contrast

On white

15.13

#1C186A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#1C186A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C186A

15.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C186A	#FFFFFF	#000000	##FFFFFF
##1C186A	1.00	15.13	1.39	15.13
#FFFFFF	15.13	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6C

Deuteranopia (green-blind)

#002269

Tritanopia (blue-blind)

#002F3F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1c186a;
/* rgb */ color: rgb(28, 24, 106);
/* oklch */ color: oklch(28.2% 0.136 275.4);

Tailwind

colors: {
  custom: {
    50: '#655696',
    500: '#1c186a',
    950: '#000000',
  },
}

SCSS

$custom: #1c186a;
$custom-light: #655696;
$custom-dark: #000000;

JSON

{
  "hex": "#1c186a",
  "rgb": {
    "r": 28,
    "g": 24,
    "b": 106
  },
  "hsl": {
    "h": 242.927,
    "s": 63.077,
    "l": 25.49
  },
  "oklch": {
    "l": 0.28178,
    "c": 0.13585,
    "h": 275.4
  },
  "luminance": 0.01941
}

Semantic roles & 50–950 ramp

primary

#1C186A

secondary

#9BA03E

accent

#E642DE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #1C186A

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

Preview Lab → · Contrast checker → · Palette generator →