#1D8BB3#1D8BB3

#1D8BB3 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.7% C 0.110 H 228.7°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#1D8BB3
RGB	rgb(29, 139, 179)
HSL	hsl(196, 72%, 41%)
HSV	hsv(196, 84%, 70%)
CMYK	cmyk(83.8%, 22.3%, 0%, 29.8%)
CIE-LAB	lab(54.00, -15.29, -29.31)
CIE-LCH	lch(54.00, 33.06, 242.45°)
OKLab	oklab(59.69% -0.0724 -0.0825)
OKLCH	oklch(59.69% 0.11 228.7)
XYZ	xyz(17.8726, 21.9789, 45.9394)
Luminance	0.2198 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D8BB3 #B3451D

analogous

#1DB390 #1D8BB3 #1D40B3

triadic

#1D8BB3 #B31D8B #8BB31D

tetradic

#1D8BB3 #901DB3 #B3451D #40B31D

square

#1D8BB3 #901DB3 #B3451D #40B31D

split-complementary

#1D8BB3 #B31D40 #B3901D

monochromatic

#0C394A #14627E #1D8BB3 #30AFDD #64C3E6

Accessibility & contrast

On white

3.89

#1D8BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#1D8BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D8BB3

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D8BB3	#FFFFFF	#000000	##000000
##1D8BB3	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7689B5

Deuteranopia (green-blind)

#637BB2

Tritanopia (blue-blind)

#009698

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #1d8bb3;
/* rgb */ color: rgb(29, 139, 179);
/* oklch */ color: oklch(59.7% 0.110 228.7);

Tailwind

colors: {
  custom: {
    50: '#75adca',
    500: '#1d8bb3',
    950: '#000000',
  },
}

SCSS

$custom: #1d8bb3;
$custom-light: #75adca;
$custom-dark: #000000;

JSON

{
  "hex": "#1d8bb3",
  "rgb": {
    "r": 29,
    "g": 139,
    "b": 179
  },
  "hsl": {
    "h": 196,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.59689,
    "c": 0.10978,
    "h": 228.7
  },
  "luminance": 0.21981
}

Semantic roles & 50–950 ramp

primary

#1D8BB3

secondary

#CB7D61

accent

#6939EF

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1D8BB3

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

Preview Lab → · Contrast checker → · Palette generator →