#1B789F#1B789F

#1B789F is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 53.9% C 0.101 H 232.0°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#1B789F
RGB	rgb(27, 120, 159)
HSL	hsl(198, 71%, 36%)
HSV	hsv(198, 83%, 62%)
CMYK	cmyk(83%, 24.5%, 0%, 37.6%)
CIE-LAB	lab(47.19, -12.00, -28.32)
CIE-LCH	lch(47.19, 30.76, 247.04°)
OKLab	oklab(53.94% -0.0625 -0.0798)
OKLCH	oklch(53.94% 0.101 232)
XYZ	xyz(13.4239, 16.1675, 35.2073)
Luminance	0.1617 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B789F #9F421B

analogous

#1B9F84 #1B789F #1B369F

triadic

#1B789F #9F1B78 #789F1B

tetradic

#1B789F #841B9F #9F421B #369F1B

square

#1B789F #841B9F #9F421B #369F1B

split-complementary

#1B789F #9F1B36 #9F841B

monochromatic

#092936 #12516B #1B789F #249FD3 #53B7E2

Accessibility & contrast

On white

4.96

#1B789F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#1B789F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B789F

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B789F	#FFFFFF	#000000	##FFFFFF
##1B789F	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6477A1

Deuteranopia (green-blind)

#536B9E

Tritanopia (blue-blind)

#008385

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #1b789f;
/* rgb */ color: rgb(27, 120, 159);
/* oklch */ color: oklch(53.9% 0.101 232.0);

Tailwind

colors: {
  custom: {
    50: '#6f9fbb',
    500: '#1b789f',
    950: '#000000',
  },
}

SCSS

$custom: #1b789f;
$custom-light: #6f9fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b789f",
  "rgb": {
    "r": 27,
    "g": 120,
    "b": 159
  },
  "hsl": {
    "h": 197.727,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.53944,
    "c": 0.1014,
    "h": 232
  },
  "luminance": 0.16169
}

Semantic roles & 50–950 ramp

primary

#1B789F

secondary

#C57351

accent

#6F3AEE

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1B789F

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

Preview Lab → · Contrast checker → · Palette generator →