#1D356D#1D356D

#1D356D is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.4% C 0.102 H 264.3°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#1D356D
RGB	rgb(29, 53, 109)
HSL	hsl(222, 58%, 27%)
HSV	hsv(222, 73%, 43%)
CMYK	cmyk(73.4%, 51.4%, 0%, 57.3%)
CIE-LAB	lab(23.38, 11.68, -35.36)
CIE-LCH	lch(23.38, 37.24, 288.28°)
OKLab	oklab(34.35% -0.0102 -0.1014)
OKLCH	oklch(34.35% 0.102 264.3)
XYZ	xyz(4.5391, 3.9111, 14.9807)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D356D #6D551D

analogous

#1D5D6D #1D356D #2D1D6D

triadic

#1D356D #6D1D35 #356D1D

tetradic

#1D356D #6D1D5D #6D551D #1D6D2D

square

#1D356D #6D1D5D #6D551D #1D6D2D

split-complementary

#1D356D #6D2D1D #5D6D1D

monochromatic

#060C18 #101D3D #1D356D #2A4D9D #3A65CB

Accessibility & contrast

On white

11.78

#1D356D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1D356D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D356D

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D356D	#FFFFFF	#000000	##FFFFFF
##1D356D	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#163C6F

Deuteranopia (green-blind)

#01346C

Tritanopia (blue-blind)

#00424B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d356d;
/* rgb */ color: rgb(29, 53, 109);
/* oklch */ color: oklch(34.4% 0.102 264.3);

Tailwind

colors: {
  custom: {
    50: '#646b97',
    500: '#1d356d',
    950: '#000000',
  },
}

SCSS

$custom: #1d356d;
$custom-light: #646b97;
$custom-dark: #000000;

JSON

{
  "hex": "#1d356d",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 109
  },
  "hsl": {
    "h": 222,
    "s": 57.971,
    "l": 27.059
  },
  "oklch": {
    "l": 0.3435,
    "c": 0.10195,
    "h": 264.3
  },
  "luminance": 0.03912
}

Semantic roles & 50–950 ramp

primary

#1D356D

secondary

#A28644

accent

#B347E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1D356D

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

Preview Lab → · Contrast checker → · Palette generator →