#1B758B#1B758B

#1B758B is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.2% C 0.086 H 218.7°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#1B758B
RGB	rgb(27, 117, 139)
HSL	hsl(192, 67%, 33%)
HSV	hsv(192, 81%, 55%)
CMYK	cmyk(80.6%, 15.8%, 0%, 45.5%)
CIE-LAB	lab(45.38, -17.49, -19.31)
CIE-LCH	lch(45.38, 26.06, 227.83°)
OKLab	oklab(52.21% -0.0674 -0.054)
OKLCH	oklch(52.21% 0.086 218.7)
XYZ	xyz(11.4715, 14.8183, 26.6767)
Luminance	0.1482 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B758B #8B311B

analogous

#1B8B69 #1B758B #1B3D8B

triadic

#1B758B #8B1B75 #758B1B

tetradic

#1B758B #691B8B #8B311B #3D8B1B

square

#1B758B #691B8B #8B311B #3D8B1B

split-complementary

#1B758B #8B1B3D #8B691B

monochromatic

#071F25 #114A58 #1B758B #25A0BE #45BEDB

Accessibility & contrast

On white

5.30

#1B758B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#1B758B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B758B

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B758B	#FFFFFF	#000000	##FFFFFF
##1B758B	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67728C

Deuteranopia (green-blind)

#58678B

Tritanopia (blue-blind)

#007C7C

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #1b758b;
/* rgb */ color: rgb(27, 117, 139);
/* oklch */ color: oklch(52.2% 0.086 218.7);

Tailwind

colors: {
  custom: {
    50: '#6c9dad',
    500: '#1b758b',
    950: '#000000',
  },
}

SCSS

$custom: #1b758b;
$custom-light: #6c9dad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b758b",
  "rgb": {
    "r": 27,
    "g": 117,
    "b": 139
  },
  "hsl": {
    "h": 191.786,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.52211,
    "c": 0.08635,
    "h": 218.7
  },
  "luminance": 0.1482
}

Semantic roles & 50–950 ramp

primary

#1B758B

secondary

#BC5D45

accent

#5F3DEA

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B758B

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

Preview Lab → · Contrast checker → · Palette generator →