#1D389C#1D389C

#1D389C is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.1% C 0.166 H 266.6°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#1D389C
RGB	rgb(29, 56, 156)
HSL	hsl(227, 69%, 36%)
HSV	hsv(227, 81%, 61%)
CMYK	cmyk(81.4%, 64.1%, 0%, 38.8%)
CIE-LAB	lab(28.08, 28.37, -57.09)
CIE-LCH	lch(28.08, 63.74, 296.42°)
OKLab	oklab(39.09% -0.0099 -0.1652)
OKLCH	oklch(39.09% 0.166 266.6)
XYZ	xyz(7.9195, 5.4889, 32.0881)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D389C #9C811D

analogous

#1D789C #1D389C #421D9C

triadic

#1D389C #9C1D38 #389C1D

tetradic

#1D389C #9C1D78 #9C811D #1D9C42

square

#1D389C #9C1D78 #9C811D #1D9C42

split-complementary

#1D389C #9C421D #789C1D

monochromatic

#0A1335 #132568 #1D389C #274BD0 #5472DF

Accessibility & contrast

On white

10.01

#1D389C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1D389C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D389C

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D389C	#FFFFFF	#000000	##FFFFFF
##1D389C	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489F

Deuteranopia (green-blind)

#003C9A

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1d389c;
/* rgb */ color: rgb(29, 56, 156);
/* oklch */ color: oklch(39.1% 0.166 266.6);

Tailwind

colors: {
  custom: {
    50: '#706eba',
    500: '#1d389c',
    950: '#000000',
  },
}

SCSS

$custom: #1d389c;
$custom-light: #706eba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d389c",
  "rgb": {
    "r": 29,
    "g": 56,
    "b": 156
  },
  "hsl": {
    "h": 227.244,
    "s": 68.649,
    "l": 36.275
  },
  "oklch": {
    "l": 0.39094,
    "c": 0.16551,
    "h": 266.6
  },
  "luminance": 0.0549
}

Semantic roles & 50–950 ramp

primary

#1D389C

secondary

#C2AB52

accent

#C63CEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1D389C

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

Preview Lab → · Contrast checker → · Palette generator →