#1D4C73#1D4C73

#1D4C73 is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.4% C 0.083 H 246.9°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#1D4C73
RGB	rgb(29, 76, 115)
HSL	hsl(207, 60%, 28%)
HSV	hsv(207, 75%, 45%)
CMYK	cmyk(74.8%, 33.9%, 0%, 54.9%)
CIE-LAB	lab(31.04, -1.64, -26.97)
CIE-LCH	lch(31.04, 27.02, 266.52°)
OKLab	oklab(40.42% -0.0326 -0.0764)
OKLCH	oklch(40.42% 0.083 246.9)
XYZ	xyz(6.1845, 6.6672, 17.1773)
Luminance	0.0667 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4C73 #73441D

analogous

#1D736F #1D4C73 #1D2173

triadic

#1D4C73 #731D4C #4C731D

tetradic

#1D4C73 #6F1D73 #73441D #21731D

square

#1D4C73 #6F1D73 #73441D #21731D

split-complementary

#1D4C73 #731D21 #736F1D

monochromatic

#061018 #112C42 #1D4C73 #296CA4 #3C8CCE

Accessibility & contrast

On white

9.00

#1D4C73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1D4C73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4C73

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4C73	#FFFFFF	#000000	##FFFFFF
##1D4C73	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4E75

Deuteranopia (green-blind)

#2E4572

Tritanopia (blue-blind)

#00555A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d4c73;
/* rgb */ color: rgb(29, 76, 115);
/* oklch */ color: oklch(40.4% 0.083 246.9);

Tailwind

colors: {
  custom: {
    50: '#657d9b',
    500: '#1d4c73',
    950: '#000000',
  },
}

SCSS

$custom: #1d4c73;
$custom-light: #657d9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4c73",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 115
  },
  "hsl": {
    "h": 207.209,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.40422,
    "c": 0.08311,
    "h": 246.9
  },
  "luminance": 0.06668
}

Semantic roles & 50–950 ramp

primary

#1D4C73

secondary

#A77145

accent

#8D45E3

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1D4C73

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

Preview Lab → · Contrast checker → · Palette generator →