#1D186D#1D186D

#1D186D is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.140 H 275.5°. Best body text is #FFFFFF at 14.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D186D
RGB	rgb(29, 24, 109)
HSL	hsl(244, 64%, 26%)
HSV	hsv(244, 78%, 43%)
CMYK	cmyk(73.4%, 78%, 0%, 57.3%)
CIE-LAB	lab(15.58, 31.67, -48.07)
CIE-LCH	lch(15.58, 57.56, 303.38°)
OKLab	oklab(28.59% 0.0135 -0.139)
OKLCH	oklch(28.59% 0.14 275.5)
XYZ	xyz(3.5927, 2.0183, 14.6653)
Luminance	0.0202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D186D #686D18

analogous

#183D6D #1D186D #47186D

triadic

#1D186D #6D1D18 #186D1D

tetradic

#1D186D #6D183D #686D18 #186D47

square

#1D186D #6D183D #686D18 #186D47

split-complementary

#1D186D #6D4718 #3D6D18

monochromatic

#070619 #100D3B #1D186D #2A239F #382ED1

Accessibility & contrast

On white

14.96

#1D186D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1D186D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D186D

14.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D186D	#FFFFFF	#000000	##FFFFFF
##1D186D	1.00	14.96	1.40	14.96
#FFFFFF	14.96	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6F

Deuteranopia (green-blind)

#00236B

Tritanopia (blue-blind)

#003041

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1d186d;
/* rgb */ color: rgb(29, 24, 109);
/* oklch */ color: oklch(28.6% 0.140 275.5);

Tailwind

colors: {
  custom: {
    50: '#675698',
    500: '#1d186d',
    950: '#000000',
  },
}

SCSS

$custom: #1d186d;
$custom-light: #675698;
$custom-dark: #000000;

JSON

{
  "hex": "#1d186d",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 109
  },
  "hsl": {
    "h": 243.529,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.2859,
    "c": 0.13961,
    "h": 275.5
  },
  "luminance": 0.02019
}

Semantic roles & 50–950 ramp

primary

#1D186D

secondary

#9DA33E

accent

#E741DD

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D186D

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

Preview Lab → · Contrast checker → · Palette generator →