#1B8AB3#1B8AB3

#1B8AB3 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.4% C 0.111 H 229.4°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B8AB3
RGB	rgb(27, 138, 179)
HSL	hsl(196, 74%, 40%)
HSV	hsv(196, 85%, 70%)
CMYK	cmyk(84.9%, 22.9%, 0%, 29.8%)
CIE-LAB	lab(53.67, -14.90, -29.83)
CIE-LCH	lch(53.67, 33.35, 243.46°)
OKLab	oklab(59.41% -0.0721 -0.084)
OKLCH	oklch(59.41% 0.111 229.4)
XYZ	xyz(17.6738, 21.6624, 45.8888)
Luminance	0.2167 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8AB3 #B3441B

analogous

#1BB390 #1B8AB3 #1B3EB3

triadic

#1B8AB3 #B31B8A #8AB31B

tetradic

#1B8AB3 #901BB3 #B3441B #3EB31B

square

#1B8AB3 #901BB3 #B3441B #3EB31B

split-complementary

#1B8AB3 #B31B3E #B3901B

monochromatic

#0B3849 #13617E #1B8AB3 #2CAFDF #61C3E7

Accessibility & contrast

On white

3.94

#1B8AB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#1B8AB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8AB3

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8AB3	#FFFFFF	#000000	##000000
##1B8AB3	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7588B5

Deuteranopia (green-blind)

#617AB2

Tritanopia (blue-blind)

#009598

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #1b8ab3;
/* rgb */ color: rgb(27, 138, 179);
/* oklch */ color: oklch(59.4% 0.111 229.4);

Tailwind

colors: {
  custom: {
    50: '#74acca',
    500: '#1b8ab3',
    950: '#000000',
  },
}

SCSS

$custom: #1b8ab3;
$custom-light: #74acca;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8ab3",
  "rgb": {
    "r": 27,
    "g": 138,
    "b": 179
  },
  "hsl": {
    "h": 196.184,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.5941,
    "c": 0.11073,
    "h": 229.4
  },
  "luminance": 0.21665
}

Semantic roles & 50–950 ramp

primary

#1B8AB3

secondary

#CC7C5E

accent

#6937F0

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1B8AB3

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

Preview Lab → · Contrast checker → · Palette generator →