#1B5F73#1B5F73

#1B5F73 is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.3% C 0.073 H 221.8°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#1B5F73
RGB	rgb(27, 95, 115)
HSL	hsl(194, 62%, 28%)
HSV	hsv(194, 77%, 45%)
CMYK	cmyk(76.5%, 17.4%, 0%, 54.9%)
CIE-LAB	lab(37.21, -13.61, -17.36)
CIE-LCH	lch(37.21, 22.06, 231.89°)
OKLab	oklab(45.32% -0.0543 -0.0485)
OKLCH	oklch(45.32% 0.073 221.8)
XYZ	xyz(7.6374, 9.6543, 17.6773)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5F73 #732F1B

analogous

#1B735B #1B5F73 #1B3373

triadic

#1B5F73 #731B5F #5F731B

tetradic

#1B5F73 #5B1B73 #732F1B #33731B

square

#1B5F73 #5B1B73 #732F1B #33731B

split-complementary

#1B5F73 #731B33 #735B1B

monochromatic

#061419 #0F3641 #1B5F73 #2788A5 #38AED0

Accessibility & contrast

On white

7.16

#1B5F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1B5F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5F73

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5F73	#FFFFFF	#000000	##FFFFFF
##1B5F73	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#535D74

Deuteranopia (green-blind)

#475473

Tritanopia (blue-blind)

#006565

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b5f73;
/* rgb */ color: rgb(27, 95, 115);
/* oklch */ color: oklch(45.3% 0.073 221.8);

Tailwind

colors: {
  custom: {
    50: '#668c9b',
    500: '#1b5f73',
    950: '#000000',
  },
}

SCSS

$custom: #1b5f73;
$custom-light: #668c9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5f73",
  "rgb": {
    "r": 27,
    "g": 95,
    "b": 115
  },
  "hsl": {
    "h": 193.636,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.45319,
    "c": 0.07287,
    "h": 221.8
  },
  "luminance": 0.09655
}

Semantic roles & 50–950 ramp

primary

#1B5F73

secondary

#A85942

accent

#6843E5

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0E

muted

#7A7D7E

Preview Lab

Preview with #1B5F73

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

Preview Lab → · Contrast checker → · Palette generator →