#1C188D#1C188D

#1C188D is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.3% C 0.180 H 271.5°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#1C188D
RGB	rgb(28, 24, 141)
HSL	hsl(242, 71%, 32%)
HSV	hsv(242, 83%, 55%)
CMYK	cmyk(80.1%, 83%, 0%, 44.7%)
CIE-LAB	lab(19.32, 42.46, -62.29)
CIE-LCH	lch(19.32, 75.39, 304.28°)
OKLab	oklab(32.31% 0.0046 -0.1803)
OKLCH	oklch(32.31% 0.18 271.5)
XYZ	xyz(5.6116, 2.8226, 25.4432)
Luminance	0.0282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C188D #898D18

analogous

#184F8D #1C188D #56188D

triadic

#1C188D #8D1C18 #188D1C

tetradic

#1C188D #8D184F #898D18 #188D56

square

#1C188D #8D184F #898D18 #188D56

split-complementary

#1C188D #8D5618 #4F8D18

monochromatic

#070624 #120F59 #1C188D #2621C1 #4641DF

Accessibility & contrast

On white

13.42

#1C188D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1C188D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C188D

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C188D	#FFFFFF	#000000	##FFFFFF
##1C188D	1.00	13.42	1.56	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003490

Deuteranopia (green-blind)

#00298B

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1c188d;
/* rgb */ color: rgb(28, 24, 141);
/* oklch */ color: oklch(32.3% 0.180 271.5);

Tailwind

colors: {
  custom: {
    50: '#6f58b0',
    500: '#1c188d',
    950: '#000000',
  },
}

SCSS

$custom: #1c188d;
$custom-light: #6f58b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c188d",
  "rgb": {
    "r": 28,
    "g": 24,
    "b": 141
  },
  "hsl": {
    "h": 242.051,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32305,
    "c": 0.18035,
    "h": 271.5
  },
  "luminance": 0.02823
}

Semantic roles & 50–950 ramp

primary

#1C188D

secondary

#BBBF42

accent

#EE3AE8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1C188D

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

Preview Lab → · Contrast checker → · Palette generator →