#1D366A#1D366A

#1D366A is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.4% C 0.096 H 263.0°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#1D366A
RGB	rgb(29, 54, 106)
HSL	hsl(221, 57%, 26%)
HSV	hsv(221, 73%, 42%)
CMYK	cmyk(72.6%, 49.1%, 0%, 58.4%)
CIE-LAB	lab(23.47, 9.76, -33.27)
CIE-LCH	lch(23.47, 34.68, 286.34°)
OKLab	oklab(34.36% -0.0117 -0.0953)
OKLCH	oklch(34.36% 0.096 263)
XYZ	xyz(4.4265, 3.9397, 14.1600)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D366A #6A511D

analogous

#1D5D6A #1D366A #2B1D6A

triadic

#1D366A #6A1D36 #366A1D

tetradic

#1D366A #6A1D5D #6A511D #1D6A2B

square

#1D366A #6A1D5D #6A511D #1D6A2B

split-complementary

#1D366A #6A2B1D #5D6A1D

monochromatic

#070C18 #101E3A #1D366A #2A4E9A #3967C9

Accessibility & contrast

On white

11.74

#1D366A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1D366A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D366A

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D366A	#FFFFFF	#000000	##FFFFFF
##1D366A	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3C6C

Deuteranopia (green-blind)

#0B3569

Tritanopia (blue-blind)

#00424A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d366a;
/* rgb */ color: rgb(29, 54, 106);
/* oklch */ color: oklch(34.4% 0.096 263.0);

Tailwind

colors: {
  custom: {
    50: '#636c95',
    500: '#1d366a',
    950: '#000000',
  },
}

SCSS

$custom: #1d366a;
$custom-light: #636c95;
$custom-dark: #000000;

JSON

{
  "hex": "#1d366a",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 106
  },
  "hsl": {
    "h": 220.519,
    "s": 57.037,
    "l": 26.471
  },
  "oklch": {
    "l": 0.34355,
    "c": 0.096,
    "h": 263
  },
  "luminance": 0.0394
}

Semantic roles & 50–950 ramp

primary

#1D366A

secondary

#9F8144

accent

#AF48E0

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1D366A

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

Preview Lab → · Contrast checker → · Palette generator →