#1B729E#1B729E

#1B729E is a mid, moderate cyan. Relative luminance 0.147; OKLCH L 52.4% C 0.104 H 236.7°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#1B729E
RGB	rgb(27, 114, 158)
HSL	hsl(200, 71%, 36%)
HSV	hsv(200, 83%, 62%)
CMYK	cmyk(82.9%, 27.8%, 0%, 38%)
CIE-LAB	lab(45.27, -8.88, -30.74)
CIE-LCH	lch(45.27, 32.00, 253.88°)
OKLab	oklab(52.4% -0.0571 -0.0869)
OKLCH	oklch(52.4% 0.104 236.7)
XYZ	xyz(12.6384, 14.7347, 34.5191)
Luminance	0.1474 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B729E #9E471B

analogous

#1B9E89 #1B729E #1B309E

triadic

#1B729E #9E1B72 #729E1B

tetradic

#1B729E #891B9E #9E471B #309E1B

square

#1B729E #891B9E #9E471B #309E1B

split-complementary

#1B729E #9E1B30 #9E891B

monochromatic

#092735 #124C6A #1B729E #2498D2 #52B1E1

Accessibility & contrast

On white

5.32

#1B729E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#1B729E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B729E

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B729E	#FFFFFF	#000000	##FFFFFF
##1B729E	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D72A0

Deuteranopia (green-blind)

#4B669D

Tritanopia (blue-blind)

#007D81

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #1b729e;
/* rgb */ color: rgb(27, 114, 158);
/* oklch */ color: oklch(52.4% 0.104 236.7);

Tailwind

colors: {
  custom: {
    50: '#6f9abb',
    500: '#1b729e',
    950: '#000000',
  },
}

SCSS

$custom: #1b729e;
$custom-light: #6f9abb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b729e",
  "rgb": {
    "r": 27,
    "g": 114,
    "b": 158
  },
  "hsl": {
    "h": 200.153,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.52395,
    "c": 0.10403,
    "h": 236.7
  },
  "luminance": 0.14736
}

Semantic roles & 50–950 ramp

primary

#1B729E

secondary

#C47751

accent

#763AEE

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #1B729E

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

Preview Lab → · Contrast checker → · Palette generator →