#1D186C#1D186C

#1D186C is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.5% C 0.138 H 275.7°. Best body text is #FFFFFF at 15.01:1 contrast (WCAG AA passes).

Color values

HEX	#1D186C
RGB	rgb(29, 24, 108)
HSL	hsl(244, 64%, 26%)
HSV	hsv(244, 78%, 42%)
CMYK	cmyk(73.1%, 77.8%, 0%, 57.6%)
CIE-LAB	lab(15.47, 31.31, -47.60)
CIE-LCH	lch(15.47, 56.98, 303.34°)
OKLab	oklab(28.48% 0.0137 -0.1376)
OKLCH	oklch(28.48% 0.138 275.7)
XYZ	xyz(3.5392, 1.9969, 14.3834)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D186C #676C18

analogous

#183D6C #1D186C #47186C

triadic

#1D186C #6C1D18 #186C1D

tetradic

#1D186C #6C183D #676C18 #186C47

square

#1D186C #6C183D #676C18 #186C47

split-complementary

#1D186C #6C4718 #3D6C18

monochromatic

#070619 #100D3A #1D186C #2A239E #382ED0

Accessibility & contrast

On white

15.01

#1D186C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1D186C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D186C

15.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D186C	#FFFFFF	#000000	##FFFFFF
##1D186C	1.00	15.01	1.40	15.01
#FFFFFF	15.01	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6E

Deuteranopia (green-blind)

#00236A

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1d186c;
/* rgb */ color: rgb(29, 24, 108);
/* oklch */ color: oklch(28.5% 0.138 275.7);

Tailwind

colors: {
  custom: {
    50: '#665697',
    500: '#1d186c',
    950: '#000000',
  },
}

SCSS

$custom: #1d186c;
$custom-light: #665697;
$custom-dark: #000000;

JSON

{
  "hex": "#1d186c",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 108
  },
  "hsl": {
    "h": 243.571,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28477,
    "c": 0.13827,
    "h": 275.7
  },
  "luminance": 0.01997
}

Semantic roles & 50–950 ramp

primary

#1D186C

secondary

#9CA23E

accent

#E741DD

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D186C

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

Preview Lab → · Contrast checker → · Palette generator →