#1B758E#1B758E

#1B758E is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.3% C 0.088 H 221.5°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B758E
RGB	rgb(27, 117, 142)
HSL	hsl(193, 68%, 33%)
HSV	hsv(193, 81%, 56%)
CMYK	cmyk(81%, 17.6%, 0%, 44.3%)
CIE-LAB	lab(45.51, -16.43, -20.91)
CIE-LCH	lch(45.51, 26.59, 231.83°)
OKLab	oklab(52.35% -0.0661 -0.0586)
OKLCH	oklch(52.35% 0.088 221.5)
XYZ	xyz(11.6937, 14.9071, 27.8470)
Luminance	0.1491 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B758E #8E341B

analogous

#1B8E6D #1B758E #1B3C8E

triadic

#1B758E #8E1B75 #758E1B

tetradic

#1B758E #6D1B8E #8E341B #3C8E1B

square

#1B758E #6D1B8E #8E341B #3C8E1B

split-complementary

#1B758E #8E1B3C #8E6D1B

monochromatic

#072027 #114B5B #1B758E #259FC1 #47BCDC

Accessibility & contrast

On white

5.27

#1B758E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#1B758E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B758E

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B758E	#FFFFFF	#000000	##FFFFFF
##1B758E	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#66728F

Deuteranopia (green-blind)

#57678E

Tritanopia (blue-blind)

#007D7D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #1b758e;
/* rgb */ color: rgb(27, 117, 142);
/* oklch */ color: oklch(52.3% 0.088 221.5);

Tailwind

colors: {
  custom: {
    50: '#6c9daf',
    500: '#1b758e',
    950: '#000000',
  },
}

SCSS

$custom: #1b758e;
$custom-light: #6c9daf;
$custom-dark: #000000;

JSON

{
  "hex": "#1b758e",
  "rgb": {
    "r": 27,
    "g": 117,
    "b": 142
  },
  "hsl": {
    "h": 193.043,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.5235,
    "c": 0.08833,
    "h": 221.5
  },
  "luminance": 0.14909
}

Semantic roles & 50–950 ramp

primary

#1B758E

secondary

#BE6147

accent

#633DEB

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B758E

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

Preview Lab → · Contrast checker → · Palette generator →