#1B5D73#1B5D73

#1B5D73 is a dark, moderate cyan. Relative luminance 0.093; OKLCH L 44.8% C 0.073 H 224.6°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B5D73
RGB	rgb(27, 93, 115)
HSL	hsl(195, 62%, 28%)
HSV	hsv(195, 77%, 45%)
CMYK	cmyk(76.5%, 19.1%, 0%, 54.9%)
CIE-LAB	lab(36.55, -12.45, -18.38)
CIE-LCH	lch(36.55, 22.19, 235.88°)
OKLab	oklab(44.79% -0.0522 -0.0515)
OKLCH	oklch(44.79% 0.073 224.6)
XYZ	xyz(7.4596, 9.2986, 17.6180)
Luminance	0.0930 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5D73 #73311B

analogous

#1B735D #1B5D73 #1B3173

triadic

#1B5D73 #731B5D #5D731B

tetradic

#1B5D73 #5D1B73 #73311B #31731B

square

#1B5D73 #5D1B73 #73311B #31731B

split-complementary

#1B5D73 #731B31 #735D1B

monochromatic

#061419 #0F3541 #1B5D73 #2785A5 #38AAD0

Accessibility & contrast

On white

7.34

#1B5D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#1B5D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5D73

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5D73	#FFFFFF	#000000	##FFFFFF
##1B5D73	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#515B74

Deuteranopia (green-blind)

#455273

Tritanopia (blue-blind)

#006464

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1b5d73;
/* rgb */ color: rgb(27, 93, 115);
/* oklch */ color: oklch(44.8% 0.073 224.6);

Tailwind

colors: {
  custom: {
    50: '#658b9b',
    500: '#1b5d73',
    950: '#000000',
  },
}

SCSS

$custom: #1b5d73;
$custom-light: #658b9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5d73",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 115
  },
  "hsl": {
    "h": 195,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.44789,
    "c": 0.07329,
    "h": 224.6
  },
  "luminance": 0.093
}

Semantic roles & 50–950 ramp

primary

#1B5D73

secondary

#A85C42

accent

#6B43E5

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0E

muted

#7A7D7E

Preview Lab

Preview with #1B5D73

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

Preview Lab → · Contrast checker → · Palette generator →