#1D4C79#1D4C79

#1D4C79 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.8% C 0.091 H 250.3°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#1D4C79
RGB	rgb(29, 76, 121)
HSL	hsl(209, 61%, 29%)
HSV	hsv(209, 76%, 47%)
CMYK	cmyk(76%, 37.2%, 0%, 52.5%)
CIE-LAB	lab(31.37, 0.72, -30.20)
CIE-LCH	lch(31.37, 30.21, 271.36°)
OKLab	oklab(40.79% -0.0308 -0.0859)
OKLCH	oklch(40.79% 0.091 250.3)
XYZ	xyz(6.5410, 6.8098, 19.0552)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4C79 #794A1D

analogous

#1D7978 #1D4C79 #1D1E79

triadic

#1D4C79 #791D4C #4C791D

tetradic

#1D4C79 #781D79 #794A1D #1E791D

square

#1D4C79 #781D79 #794A1D #1E791D

split-complementary

#1D4C79 #791D1E #79781D

monochromatic

#061019 #112D48 #1D4C79 #296BAA #3F8AD1

Accessibility & contrast

On white

8.89

#1D4C79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1D4C79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4C79

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4C79	#FFFFFF	#000000	##FFFFFF
##1D4C79	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#374F7B

Deuteranopia (green-blind)

#2A4678

Tritanopia (blue-blind)

#00575C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1d4c79;
/* rgb */ color: rgb(29, 76, 121);
/* oklch */ color: oklch(40.8% 0.091 250.3);

Tailwind

colors: {
  custom: {
    50: '#667da0',
    500: '#1d4c79',
    950: '#000000',
  },
}

SCSS

$custom: #1d4c79;
$custom-light: #667da0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4c79",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 121
  },
  "hsl": {
    "h": 209.348,
    "s": 61.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.40792,
    "c": 0.09122,
    "h": 250.3
  },
  "luminance": 0.06811
}

Semantic roles & 50–950 ramp

primary

#1D4C79

secondary

#AD7845

accent

#9243E4

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #1D4C79

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

Preview Lab → · Contrast checker → · Palette generator →