#1D5366#1D5366

#1D5366 is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.5% C 0.064 H 225.0°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#1D5366
RGB	rgb(29, 83, 102)
HSL	hsl(196, 56%, 26%)
HSV	hsv(196, 72%, 40%)
CMYK	cmyk(71.6%, 18.6%, 0%, 60%)
CIE-LAB	lab(32.71, -10.92, -16.18)
CIE-LCH	lch(32.71, 19.52, 235.99°)
OKLab	oklab(41.55% -0.0453 -0.0452)
OKLCH	oklch(41.55% 0.064 225)
XYZ	xyz(5.9973, 7.4064, 13.6813)
Luminance	0.0741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5366 #66301D

analogous

#1D6654 #1D5366 #1D2F66

triadic

#1D5366 #661D53 #53661D

tetradic

#1D5366 #541D66 #66301D #2F661D

square

#1D5366 #541D66 #66301D #2F661D

split-complementary

#1D5366 #661D2F #66541D

monochromatic

#071318 #0F2C36 #1D5366 #2B7A96 #38A1C5

Accessibility & contrast

On white

8.46

#1D5366 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1D5366 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5366

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5366	#FFFFFF	#000000	##FFFFFF
##1D5366	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#485167

Deuteranopia (green-blind)

#3E4A66

Tritanopia (blue-blind)

#005959

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d5366;
/* rgb */ color: rgb(29, 83, 102);
/* oklch */ color: oklch(41.5% 0.064 225.0);

Tailwind

colors: {
  custom: {
    50: '#638391',
    500: '#1d5366',
    950: '#000000',
  },
}

SCSS

$custom: #1d5366;
$custom-light: #638391;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5366",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 102
  },
  "hsl": {
    "h": 195.616,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.41545,
    "c": 0.06401,
    "h": 225
  },
  "luminance": 0.07407
}

Semantic roles & 50–950 ramp

primary

#1D5366

secondary

#9B5B44

accent

#7049DF

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #1D5366

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

Preview Lab → · Contrast checker → · Palette generator →