#1B5E73#1B5E73

#1B5E73 is a mid, moderate cyan. Relative luminance 0.095; OKLCH L 45.1% C 0.073 H 223.2°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B5E73
RGB	rgb(27, 94, 115)
HSL	hsl(194, 62%, 28%)
HSV	hsv(194, 77%, 45%)
CMYK	cmyk(76.5%, 18.3%, 0%, 54.9%)
CIE-LAB	lab(36.88, -13.03, -17.87)
CIE-LCH	lch(36.88, 22.11, 233.89°)
OKLab	oklab(45.05% -0.0533 -0.05)
OKLCH	oklch(45.05% 0.073 223.2)
XYZ	xyz(7.5479, 9.4753, 17.6475)
Luminance	0.0948 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5E73 #73301B

analogous

#1B735C #1B5E73 #1B3273

triadic

#1B5E73 #731B5E #5E731B

tetradic

#1B5E73 #5C1B73 #73301B #32731B

square

#1B5E73 #5C1B73 #73301B #32731B

split-complementary

#1B5E73 #731B32 #735C1B

monochromatic

#061419 #0F3541 #1B5E73 #2787A5 #38ACD0

Accessibility & contrast

On white

7.25

#1B5E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#1B5E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5E73

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5E73	#FFFFFF	#000000	##FFFFFF
##1B5E73	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#525C74

Deuteranopia (green-blind)

#465373

Tritanopia (blue-blind)

#006465

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1b5e73;
/* rgb */ color: rgb(27, 94, 115);
/* oklch */ color: oklch(45.1% 0.073 223.2);

Tailwind

colors: {
  custom: {
    50: '#658b9b',
    500: '#1b5e73',
    950: '#000000',
  },
}

SCSS

$custom: #1b5e73;
$custom-light: #658b9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5e73",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 115
  },
  "hsl": {
    "h": 194.318,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.45054,
    "c": 0.07305,
    "h": 223.2
  },
  "luminance": 0.09476
}

Semantic roles & 50–950 ramp

primary

#1B5E73

secondary

#A85A42

accent

#6943E5

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0E

muted

#7A7D7E

Preview Lab

Preview with #1B5E73

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

Preview Lab → · Contrast checker → · Palette generator →