#1D3073#1D3073

#1D3073 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.7% C 0.118 H 267.6°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#1D3073
RGB	rgb(29, 48, 115)
HSL	hsl(227, 60%, 28%)
HSV	hsv(227, 75%, 45%)
CMYK	cmyk(74.8%, 58.3%, 0%, 54.9%)
CIE-LAB	lab(22.35, 17.68, -40.87)
CIE-LCH	lch(22.35, 44.53, 293.39°)
OKLab	oklab(33.72% -0.0049 -0.1177)
OKLCH	oklch(33.72% 0.118 267.6)
XYZ	xyz(4.6571, 3.6124, 16.6682)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3073 #73601D

analogous

#1D5B73 #1D3073 #351D73

triadic

#1D3073 #731D30 #30731D

tetradic

#1D3073 #731D5B #73601D #1D7335

square

#1D3073 #731D5B #73601D #1D7335

split-complementary

#1D3073 #73351D #5B731D

monochromatic

#060A18 #111C42 #1D3073 #2944A4 #3C5DCE

Accessibility & contrast

On white

12.19

#1D3073 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1D3073 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3073

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3073	#FFFFFF	#000000	##FFFFFF
##1D3073	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A75

Deuteranopia (green-blind)

#003272

Tritanopia (blue-blind)

#00404C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d3073;
/* rgb */ color: rgb(29, 48, 115);
/* oklch */ color: oklch(33.7% 0.118 267.6);

Tailwind

colors: {
  custom: {
    50: '#66679c',
    500: '#1d3073',
    950: '#000000',
  },
}

SCSS

$custom: #1d3073;
$custom-light: #66679c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3073",
  "rgb": {
    "r": 29,
    "g": 48,
    "b": 115
  },
  "hsl": {
    "h": 226.744,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33716,
    "c": 0.11785,
    "h": 267.6
  },
  "luminance": 0.03613
}

Semantic roles & 50–950 ramp

primary

#1D3073

secondary

#A79145

accent

#C045E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1D3073

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

Preview Lab → · Contrast checker → · Palette generator →