#1B8AAD#1B8AAD

#1B8AAD is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.1% C 0.106 H 225.4°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B8AAD
RGB	rgb(27, 138, 173)
HSL	hsl(194, 73%, 39%)
HSV	hsv(194, 84%, 68%)
CMYK	cmyk(84.4%, 20.2%, 0%, 32.2%)
CIE-LAB	lab(53.41, -17.03, -26.79)
CIE-LCH	lch(53.41, 31.75, 237.55°)
OKLab	oklab(59.12% -0.0743 -0.0753)
OKLCH	oklch(59.12% 0.106 225.4)
XYZ	xyz(17.0801, 21.4249, 42.7623)
Luminance	0.2143 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8AAD #AD3E1B

analogous

#1BAD87 #1B8AAD #1B41AD

triadic

#1B8AAD #AD1B8A #8AAD1B

tetradic

#1B8AAD #871BAD #AD3E1B #41AD1B

square

#1B8AAD #871BAD #AD3E1B #41AD1B

split-complementary

#1B8AAD #AD1B41 #AD871B

monochromatic

#0A3643 #136078 #1B8AAD #28B2DD #5DC5E6

Accessibility & contrast

On white

3.97

#1B8AAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#1B8AAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8AAD

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8AAD	#FFFFFF	#000000	##000000
##1B8AAD	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7787AF

Deuteranopia (green-blind)

#647AAD

Tritanopia (blue-blind)

#009495

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #1b8aad;
/* rgb */ color: rgb(27, 138, 173);
/* oklch */ color: oklch(59.1% 0.106 225.4);

Tailwind

colors: {
  custom: {
    50: '#73acc5',
    500: '#1b8aad',
    950: '#000000',
  },
}

SCSS

$custom: #1b8aad;
$custom-light: #73acc5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8aad",
  "rgb": {
    "r": 27,
    "g": 138,
    "b": 173
  },
  "hsl": {
    "h": 194.384,
    "s": 73,
    "l": 39.216
  },
  "oklch": {
    "l": 0.59121,
    "c": 0.1058,
    "h": 225.4
  },
  "luminance": 0.21427
}

Semantic roles & 50–950 ramp

primary

#1B8AAD

secondary

#CA755A

accent

#6438F0

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1B8AAD

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

Preview Lab → · Contrast checker → · Palette generator →