#1D3C9C#1D3C9C

#1D3C9C is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.161 H 265.6°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#1D3C9C
RGB	rgb(29, 60, 156)
HSL	hsl(225, 69%, 36%)
HSV	hsv(225, 81%, 61%)
CMYK	cmyk(81.4%, 61.5%, 0%, 38.8%)
CIE-LAB	lab(29.14, 25.66, -55.36)
CIE-LCH	lch(29.14, 61.02, 294.87°)
OKLab	oklab(39.88% -0.0123 -0.1601)
OKLCH	oklch(39.88% 0.161 265.6)
XYZ	xyz(8.1212, 5.8923, 32.1553)
Luminance	0.0589 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3C9C #9C7D1D

analogous

#1D7C9C #1D3C9C #3D1D9C

triadic

#1D3C9C #9C1D3C #3C9C1D

tetradic

#1D3C9C #9C1D7C #9C7D1D #1D9C3D

square

#1D3C9C #9C1D7C #9C7D1D #1D9C3D

split-complementary

#1D3C9C #9C3D1D #7C9C1D

monochromatic

#0A1435 #132868 #1D3C9C #2750D0 #5476DF

Accessibility & contrast

On white

9.64

#1D3C9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1D3C9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3C9C

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3C9C	#FFFFFF	#000000	##FFFFFF
##1D3C9C	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9F

Deuteranopia (green-blind)

#003F9A

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1d3c9c;
/* rgb */ color: rgb(29, 60, 156);
/* oklch */ color: oklch(39.9% 0.161 265.6);

Tailwind

colors: {
  custom: {
    50: '#7071ba',
    500: '#1d3c9c',
    950: '#000000',
  },
}

SCSS

$custom: #1d3c9c;
$custom-light: #7071ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3c9c",
  "rgb": {
    "r": 29,
    "g": 60,
    "b": 156
  },
  "hsl": {
    "h": 225.354,
    "s": 68.649,
    "l": 36.275
  },
  "oklch": {
    "l": 0.39877,
    "c": 0.16058,
    "h": 265.6
  },
  "luminance": 0.05893
}

Semantic roles & 50–950 ramp

primary

#1D3C9C

secondary

#C2A752

accent

#C13CEB

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1D3C9C

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

Preview Lab → · Contrast checker → · Palette generator →