#1D9FBC#1D9FBC

#1D9FBC is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.0% C 0.111 H 217.9°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#1D9FBC
RGB	rgb(29, 159, 188)
HSL	hsl(191, 73%, 43%)
HSV	hsv(191, 85%, 74%)
CMYK	cmyk(84.6%, 15.4%, 0%, 26.3%)
CIE-LAB	lab(60.50, -22.86, -24.37)
CIE-LCH	lch(60.50, 33.42, 226.83°)
OKLab	oklab(65.03% -0.0877 -0.0682)
OKLCH	oklch(65.03% 0.111 217.9)
XYZ	xyz(21.9780, 28.6855, 51.9457)
Luminance	0.2869 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D9FBC #BC3A1D

analogous

#1DBC89 #1D9FBC #1D50BC

triadic

#1D9FBC #BC1D9F #9FBC1D

tetradic

#1D9FBC #891DBC #BC3A1D #50BC1D

square

#1D9FBC #891DBC #BC3A1D #50BC1D

split-complementary

#1D9FBC #BC1D50 #BC891D

monochromatic

#0D4552 #157287 #1D9FBC #36C1E0 #6BD1E8

Accessibility & contrast

On white

3.12

#1D9FBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#1D9FBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D9FBC

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D9FBC	#FFFFFF	#000000	##000000
##1D9FBC	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C9ABE

Deuteranopia (green-blind)

#788CBC

Tritanopia (blue-blind)

#00A9A8

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #1d9fbc;
/* rgb */ color: rgb(29, 159, 188);
/* oklch */ color: oklch(65.0% 0.111 217.9);

Tailwind

colors: {
  custom: {
    50: '#78bbd0',
    500: '#1d9fbc',
    950: '#000000',
  },
}

SCSS

$custom: #1d9fbc;
$custom-light: #78bbd0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d9fbc",
  "rgb": {
    "r": 29,
    "g": 159,
    "b": 188
  },
  "hsl": {
    "h": 190.943,
    "s": 73.272,
    "l": 42.549
  },
  "oklch": {
    "l": 0.65028,
    "c": 0.11108,
    "h": 217.9
  },
  "luminance": 0.28688
}

Semantic roles & 50–950 ramp

primary

#1D9FBC

secondary

#CE7A67

accent

#5938F0

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1214

muted

#7C8182

Preview Lab

Preview with #1D9FBC

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

Preview Lab → · Contrast checker → · Palette generator →