#1B7A90#1B7A90

#1B7A90 is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 53.7% C 0.089 H 217.8°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#1B7A90
RGB	rgb(27, 122, 144)
HSL	hsl(191, 68%, 34%)
HSV	hsv(191, 81%, 56%)
CMYK	cmyk(81.3%, 15.3%, 0%, 43.5%)
CIE-LAB	lab(47.19, -18.48, -19.50)
CIE-LCH	lch(47.19, 26.87, 226.54°)
OKLab	oklab(53.73% -0.0703 -0.0545)
OKLCH	oklch(53.73% 0.089 217.8)
XYZ	xyz(12.4434, 16.1641, 28.8443)
Luminance	0.1617 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B7A90 #90311B

analogous

#1B906B #1B7A90 #1B3F90

triadic

#1B7A90 #901B7A #7A901B

tetradic

#1B7A90 #6B1B90 #90311B #3F901B

square

#1B7A90 #6B1B90 #90311B #3F901B

split-complementary

#1B7A90 #901B3F #906B1B

monochromatic

#082329 #114E5C #1B7A90 #25A6C4 #49C1DD

Accessibility & contrast

On white

4.96

#1B7A90 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#1B7A90 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B7A90

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B7A90	#FFFFFF	#000000	##FFFFFF
##1B7A90	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)

#6C7691

Deuteranopia (green-blind)

#5C6B90

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #1b7a90;
/* rgb */ color: rgb(27, 122, 144);
/* oklch */ color: oklch(53.7% 0.089 217.8);

Tailwind

colors: {
  custom: {
    50: '#6da0b0',
    500: '#1b7a90',
    950: '#000000',
  },
}

SCSS

$custom: #1b7a90;
$custom-light: #6da0b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b7a90",
  "rgb": {
    "r": 27,
    "g": 122,
    "b": 144
  },
  "hsl": {
    "h": 191.282,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.5373,
    "c": 0.089,
    "h": 217.8
  },
  "luminance": 0.16166
}

Semantic roles & 50–950 ramp

primary

#1B7A90

secondary

#BF5E48

accent

#5D3DEB

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B7A90

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

Preview Lab → · Contrast checker → · Palette generator →