#1B758A#1B758A

#1B758A is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.2% C 0.086 H 217.8°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B758A
RGB	rgb(27, 117, 138)
HSL	hsl(191, 67%, 32%)
HSV	hsv(191, 80%, 54%)
CMYK	cmyk(80.4%, 15.2%, 0%, 45.9%)
CIE-LAB	lab(45.34, -17.84, -18.78)
CIE-LCH	lch(45.34, 25.90, 226.47°)
OKLab	oklab(52.16% -0.0678 -0.0525)
OKLCH	oklch(52.16% 0.086 217.8)
XYZ	xyz(11.3988, 14.7892, 26.2937)
Luminance	0.1479 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B758A #8A301B

analogous

#1B8A67 #1B758A #1B3E8A

triadic

#1B758A #8A1B75 #758A1B

tetradic

#1B758A #671B8A #8A301B #3E8A1B

square

#1B758A #671B8A #8A301B #3E8A1B

split-complementary

#1B758A #8A1B3E #8A671B

monochromatic

#071E24 #114A57 #1B758A #25A0BD #45BEDB

Accessibility & contrast

On white

5.31

#1B758A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#1B758A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B758A

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B758A	#FFFFFF	#000000	##FFFFFF
##1B758A	1.00	5.31	3.96	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67718B

Deuteranopia (green-blind)

#59678A

Tritanopia (blue-blind)

#007C7C

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #1b758a;
/* rgb */ color: rgb(27, 117, 138);
/* oklch */ color: oklch(52.2% 0.086 217.8);

Tailwind

colors: {
  custom: {
    50: '#6b9dac',
    500: '#1b758a',
    950: '#000000',
  },
}

SCSS

$custom: #1b758a;
$custom-light: #6b9dac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b758a",
  "rgb": {
    "r": 27,
    "g": 117,
    "b": 138
  },
  "hsl": {
    "h": 191.351,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.52165,
    "c": 0.08574,
    "h": 217.8
  },
  "luminance": 0.14791
}

Semantic roles & 50–950 ramp

primary

#1B758A

secondary

#BC5B45

accent

#5E3EEA

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B758A

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

Preview Lab → · Contrast checker → · Palette generator →