#1D356A#1D356A

#1D356A is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.1% C 0.097 H 263.7°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#1D356A
RGB	rgb(29, 53, 106)
HSL	hsl(221, 57%, 26%)
HSV	hsv(221, 73%, 42%)
CMYK	cmyk(72.6%, 50%, 0%, 58.4%)
CIE-LAB	lab(23.16, 10.47, -33.77)
CIE-LCH	lch(23.16, 35.36, 287.22°)
OKLab	oklab(34.12% -0.0106 -0.0968)
OKLCH	oklch(34.12% 0.097 263.7)
XYZ	xyz(4.3804, 3.8476, 14.1447)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D356A #6A521D

analogous

#1D5C6A #1D356A #2C1D6A

triadic

#1D356A #6A1D35 #356A1D

tetradic

#1D356A #6A1D5C #6A521D #1D6A2C

square

#1D356A #6A1D5C #6A521D #1D6A2C

split-complementary

#1D356A #6A2C1D #5C6A1D

monochromatic

#070C18 #101D3A #1D356A #2A4D9A #3966C9

Accessibility & contrast

On white

11.87

#1D356A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1D356A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D356A

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D356A	#FFFFFF	#000000	##FFFFFF
##1D356A	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193B6C

Deuteranopia (green-blind)

#083469

Tritanopia (blue-blind)

#00414A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d356a;
/* rgb */ color: rgb(29, 53, 106);
/* oklch */ color: oklch(34.1% 0.097 263.7);

Tailwind

colors: {
  custom: {
    50: '#636b95',
    500: '#1d356a',
    950: '#000000',
  },
}

SCSS

$custom: #1d356a;
$custom-light: #636b95;
$custom-dark: #000000;

JSON

{
  "hex": "#1d356a",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 106
  },
  "hsl": {
    "h": 221.299,
    "s": 57.037,
    "l": 26.471
  },
  "oklch": {
    "l": 0.34117,
    "c": 0.09735,
    "h": 263.7
  },
  "luminance": 0.03848
}

Semantic roles & 50–950 ramp

primary

#1D356A

secondary

#9F8244

accent

#B148E0

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1D356A

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

Preview Lab → · Contrast checker → · Palette generator →