#1D9EBC#1D9EBC

#1D9EBC is a light, moderate cyan. Relative luminance 0.283; OKLCH L 64.8% C 0.111 H 218.7°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#1D9EBC
RGB	rgb(29, 158, 188)
HSL	hsl(191, 73%, 43%)
HSV	hsv(191, 85%, 74%)
CMYK	cmyk(84.6%, 16%, 0%, 26.3%)
CIE-LAB	lab(60.20, -22.34, -24.84)
CIE-LCH	lch(60.20, 33.41, 228.03°)
OKLab	oklab(64.78% -0.0867 -0.0696)
OKLCH	oklch(64.78% 0.111 218.7)
XYZ	xyz(21.8068, 28.3430, 51.8886)
Luminance	0.2835 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D9EBC #BC3B1D

analogous

#1DBC8B #1D9EBC #1D4EBC

triadic

#1D9EBC #BC1D9E #9EBC1D

tetradic

#1D9EBC #8B1DBC #BC3B1D #4EBC1D

square

#1D9EBC #8B1DBC #BC3B1D #4EBC1D

split-complementary

#1D9EBC #BC1D4E #BC8B1D

monochromatic

#0D4552 #157187 #1D9EBC #36C0E0 #6BD1E8

Accessibility & contrast

On white

3.15

#1D9EBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#1D9EBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D9EBC

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D9EBC	#FFFFFF	#000000	##000000
##1D9EBC	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B99BE

Deuteranopia (green-blind)

#778BBC

Tritanopia (blue-blind)

#00A8A8

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #1d9ebc;
/* rgb */ color: rgb(29, 158, 188);
/* oklch */ color: oklch(64.8% 0.111 218.7);

Tailwind

colors: {
  custom: {
    50: '#78bbd0',
    500: '#1d9ebc',
    950: '#000000',
  },
}

SCSS

$custom: #1d9ebc;
$custom-light: #78bbd0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d9ebc",
  "rgb": {
    "r": 29,
    "g": 158,
    "b": 188
  },
  "hsl": {
    "h": 191.321,
    "s": 73.272,
    "l": 42.549
  },
  "oklch": {
    "l": 0.64782,
    "c": 0.11118,
    "h": 218.7
  },
  "luminance": 0.28346
}

Semantic roles & 50–950 ramp

primary

#1D9EBC

secondary

#CE7A67

accent

#5B38F0

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #1D9EBC

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

Preview Lab → · Contrast checker → · Palette generator →