#1D186B#1D186B

#1D186B is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.4% C 0.137 H 275.8°. Best body text is #FFFFFF at 15.05:1 contrast (WCAG AA passes).

Color values

HEX	#1D186B
RGB	rgb(29, 24, 107)
HSL	hsl(244, 63%, 26%)
HSV	hsv(244, 78%, 42%)
CMYK	cmyk(72.9%, 77.6%, 0%, 58%)
CIE-LAB	lab(15.36, 30.96, -47.13)
CIE-LCH	lch(15.36, 56.39, 303.30°)
OKLab	oklab(28.37% 0.0139 -0.1362)
OKLCH	oklch(28.37% 0.137 275.8)
XYZ	xyz(3.4863, 1.9757, 14.1047)
Luminance	0.0198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D186B #666B18

analogous

#183C6B #1D186B #46186B

triadic

#1D186B #6B1D18 #186B1D

tetradic

#1D186B #6B183C #666B18 #186B46

square

#1D186B #6B183C #666B18 #186B46

split-complementary

#1D186B #6B4618 #3C6B18

monochromatic

#070619 #0F0D39 #1D186B #2B239D #382ECF

Accessibility & contrast

On white

15.05

#1D186B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1D186B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D186B

15.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D186B	#FFFFFF	#000000	##FFFFFF
##1D186B	1.00	15.05	1.40	15.05
#FFFFFF	15.05	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6D

Deuteranopia (green-blind)

#00236A

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1d186b;
/* rgb */ color: rgb(29, 24, 107);
/* oklch */ color: oklch(28.4% 0.137 275.8);

Tailwind

colors: {
  custom: {
    50: '#665696',
    500: '#1d186b',
    950: '#000000',
  },
}

SCSS

$custom: #1d186b;
$custom-light: #665696;
$custom-dark: #000000;

JSON

{
  "hex": "#1d186b",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 107
  },
  "hsl": {
    "h": 243.614,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28365,
    "c": 0.13693,
    "h": 275.8
  },
  "luminance": 0.01976
}

Semantic roles & 50–950 ramp

primary

#1D186B

secondary

#9BA13E

accent

#E641DC

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1D186B

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

Preview Lab → · Contrast checker → · Palette generator →