#1D3673#1D3673

#1D3673 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.1% C 0.110 H 264.6°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#1D3673
RGB	rgb(29, 54, 115)
HSL	hsl(223, 60%, 28%)
HSV	hsv(223, 75%, 45%)
CMYK	cmyk(74.8%, 53%, 0%, 54.9%)
CIE-LAB	lab(24.12, 13.41, -38.01)
CIE-LCH	lch(24.12, 40.30, 289.43°)
OKLab	oklab(35.06% -0.0103 -0.1092)
OKLCH	oklch(35.06% 0.11 264.6)
XYZ	xyz(4.9193, 4.1368, 16.7556)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3673 #735A1D

analogous

#1D6173 #1D3673 #2F1D73

triadic

#1D3673 #731D36 #36731D

tetradic

#1D3673 #731D61 #735A1D #1D732F

square

#1D3673 #731D61 #735A1D #1D732F

split-complementary

#1D3673 #732F1D #61731D

monochromatic

#060B18 #111F42 #1D3673 #294DA4 #3C67CE

Accessibility & contrast

On white

11.49

#1D3673 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1D3673 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3673

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3673	#FFFFFF	#000000	##FFFFFF
##1D3673	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#113E75

Deuteranopia (green-blind)

#003672

Tritanopia (blue-blind)

#00454F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d3673;
/* rgb */ color: rgb(29, 54, 115);
/* oklch */ color: oklch(35.1% 0.110 264.6);

Tailwind

colors: {
  custom: {
    50: '#666c9c',
    500: '#1d3673',
    950: '#000000',
  },
}

SCSS

$custom: #1d3673;
$custom-light: #666c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3673",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 115
  },
  "hsl": {
    "h": 222.558,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.35057,
    "c": 0.1097,
    "h": 264.6
  },
  "luminance": 0.04137
}

Semantic roles & 50–950 ramp

primary

#1D3673

secondary

#A78B45

accent

#B545E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1D3673

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

Preview Lab → · Contrast checker → · Palette generator →