#1D9ABB#1D9ABB

#1D9ABB is a light, moderate cyan. Relative luminance 0.270; OKLCH L 63.8% C 0.111 H 221.4°. Best body text is #000000 at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D9ABB
RGB	rgb(29, 154, 187)
HSL	hsl(193, 73%, 42%)
HSV	hsv(193, 84%, 73%)
CMYK	cmyk(84.5%, 17.6%, 0%, 26.7%)
CIE-LAB	lab(58.94, -20.59, -26.22)
CIE-LCH	lch(58.94, 33.34, 231.86°)
OKLab	oklab(63.75% -0.0834 -0.0735)
OKLCH	oklch(63.75% 0.111 221.4)
XYZ	xyz(21.0281, 26.9576, 51.0991)
Luminance	0.2696 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D9ABB #BB3E1D

analogous

#1DBB8D #1D9ABB #1D4BBB

triadic

#1D9ABB #BB1D9A #9ABB1D

tetradic

#1D9ABB #8D1DBB #BB3E1D #4BBB1D

square

#1D9ABB #8D1DBB #BB3E1D #4BBB1D

split-complementary

#1D9ABB #BB1D4B #BB8D1D

monochromatic

#0D4351 #156E86 #1D9ABB #35BCE0 #6ACEE8

Accessibility & contrast

On white

3.29

#1D9ABB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.39

#1D9ABB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D9ABB

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D9ABB	#FFFFFF	#000000	##000000
##1D9ABB	1.00	3.29	6.39	6.39
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.39	21.00	1.00	1.00
##000000	6.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8696BD

Deuteranopia (green-blind)

#7288BB

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #1d9abb;
/* rgb */ color: rgb(29, 154, 187);
/* oklch */ color: oklch(63.8% 0.111 221.4);

Tailwind

colors: {
  custom: {
    50: '#77b8cf',
    500: '#1d9abb',
    950: '#000000',
  },
}

SCSS

$custom: #1d9abb;
$custom-light: #77b8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#1d9abb",
  "rgb": {
    "r": 29,
    "g": 154,
    "b": 187
  },
  "hsl": {
    "h": 192.532,
    "s": 73.148,
    "l": 42.353
  },
  "oklch": {
    "l": 0.63754,
    "c": 0.11118,
    "h": 221.4
  },
  "luminance": 0.2696
}

Semantic roles & 50–950 ramp

primary

#1D9ABB

secondary

#CE7C66

accent

#5E38F0

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #1D9ABB

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

Preview Lab → · Contrast checker → · Palette generator →