#1D356C#1D356C

#1D356C is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.3% C 0.100 H 264.1°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#1D356C
RGB	rgb(29, 53, 108)
HSL	hsl(222, 58%, 27%)
HSV	hsv(222, 73%, 42%)
CMYK	cmyk(73.1%, 50.9%, 0%, 57.6%)
CIE-LAB	lab(23.30, 11.28, -34.83)
CIE-LCH	lch(23.30, 36.61, 287.94°)
OKLab	oklab(34.27% -0.0103 -0.0999)
OKLCH	oklch(34.27% 0.1 264.1)
XYZ	xyz(4.4856, 3.8897, 14.6988)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D356C #6C541D

analogous

#1D5D6C #1D356C #2D1D6C

triadic

#1D356C #6C1D35 #356C1D

tetradic

#1D356C #6C1D5D #6C541D #1D6C2D

square

#1D356C #6C1D5D #6C541D #1D6C2D

split-complementary

#1D356C #6C2D1D #5D6C1D

monochromatic

#060C18 #101D3C #1D356C #2A4D9C #3965CA

Accessibility & contrast

On white

11.81

#1D356C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1D356C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D356C

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D356C	#FFFFFF	#000000	##FFFFFF
##1D356C	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173B6E

Deuteranopia (green-blind)

#03346B

Tritanopia (blue-blind)

#00424B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d356c;
/* rgb */ color: rgb(29, 53, 108);
/* oklch */ color: oklch(34.3% 0.100 264.1);

Tailwind

colors: {
  custom: {
    50: '#646b96',
    500: '#1d356c',
    950: '#000000',
  },
}

SCSS

$custom: #1d356c;
$custom-light: #646b96;
$custom-dark: #000000;

JSON

{
  "hex": "#1d356c",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 108
  },
  "hsl": {
    "h": 221.772,
    "s": 57.664,
    "l": 26.863
  },
  "oklch": {
    "l": 0.34271,
    "c": 0.10042,
    "h": 264.1
  },
  "luminance": 0.0389
}

Semantic roles & 50–950 ramp

primary

#1D356C

secondary

#A18544

accent

#B247E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1D356C

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

Preview Lab → · Contrast checker → · Palette generator →