#1C186E#1C186E

#1C186E is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.141 H 274.8°. Best body text is #FFFFFF at 14.94:1 contrast (WCAG AA passes).

Color values

HEX	#1C186E
RGB	rgb(28, 24, 110)
HSL	hsl(243, 64%, 26%)
HSV	hsv(243, 78%, 43%)
CMYK	cmyk(74.5%, 78.2%, 0%, 56.9%)
CIE-LAB	lab(15.62, 31.91, -48.66)
CIE-LCH	lch(15.62, 58.19, 303.26°)
OKLab	oklab(28.63% 0.0119 -0.1407)
OKLCH	oklch(28.63% 0.141 274.8)
XYZ	xyz(3.6191, 2.0256, 14.9491)
Luminance	0.0203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C186E #6A6E18

analogous

#183F6E #1C186E #47186E

triadic

#1C186E #6E1C18 #186E1C

tetradic

#1C186E #6E183F #6A6E18 #186E47

square

#1C186E #6E183F #6A6E18 #186E47

split-complementary

#1C186E #6E4718 #3F6E18

monochromatic

#060519 #0F0D3C #1C186E #2923A0 #362FD2

Accessibility & contrast

On white

14.94

#1C186E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1C186E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C186E

14.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C186E	#FFFFFF	#000000	##FFFFFF
##1C186E	1.00	14.94	1.41	14.94
#FFFFFF	14.94	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B70

Deuteranopia (green-blind)

#00236C

Tritanopia (blue-blind)

#003142

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1c186e;
/* rgb */ color: rgb(28, 24, 110);
/* oklch */ color: oklch(28.6% 0.141 274.8);

Tailwind

colors: {
  custom: {
    50: '#675699',
    500: '#1c186e',
    950: '#000000',
  },
}

SCSS

$custom: #1c186e;
$custom-light: #675699;
$custom-dark: #000000;

JSON

{
  "hex": "#1c186e",
  "rgb": {
    "r": 28,
    "g": 24,
    "b": 110
  },
  "hsl": {
    "h": 242.791,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.28631,
    "c": 0.14121,
    "h": 274.8
  },
  "luminance": 0.02026
}

Semantic roles & 50–950 ramp

primary

#1C186E

secondary

#9FA43E

accent

#E741DF

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1C186E

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

Preview Lab → · Contrast checker → · Palette generator →