#1D8BB0#1D8BB0

#1D8BB0 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.5% C 0.107 H 226.7°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#1D8BB0
RGB	rgb(29, 139, 176)
HSL	hsl(195, 72%, 40%)
HSV	hsv(195, 84%, 69%)
CMYK	cmyk(83.5%, 21%, 0%, 31%)
CIE-LAB	lab(53.88, -16.35, -27.79)
CIE-LCH	lch(53.88, 32.24, 239.52°)
OKLab	oklab(59.55% -0.0735 -0.0781)
OKLCH	oklch(59.55% 0.107 226.7)
XYZ	xyz(17.5725, 21.8588, 44.3589)
Luminance	0.2186 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D8BB0 #B0421D

analogous

#1DB08B #1D8BB0 #1D42B0

triadic

#1D8BB0 #B01D8B #8BB01D

tetradic

#1D8BB0 #8B1DB0 #B0421D #42B01D

square

#1D8BB0 #8B1DB0 #B0421D #42B01D

split-complementary

#1D8BB0 #B01D42 #B08B1D

monochromatic

#0C3847 #14627B #1D8BB0 #2EB1DD #62C4E5

Accessibility & contrast

On white

3.91

#1D8BB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#1D8BB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D8BB0

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D8BB0	#FFFFFF	#000000	##000000
##1D8BB0	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7788B2

Deuteranopia (green-blind)

#647BB0

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #1d8bb0;
/* rgb */ color: rgb(29, 139, 176);
/* oklch */ color: oklch(59.5% 0.107 226.7);

Tailwind

colors: {
  custom: {
    50: '#74adc7',
    500: '#1d8bb0',
    950: '#000000',
  },
}

SCSS

$custom: #1d8bb0;
$custom-light: #74adc7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d8bb0",
  "rgb": {
    "r": 29,
    "g": 139,
    "b": 176
  },
  "hsl": {
    "h": 195.102,
    "s": 71.707,
    "l": 40.196
  },
  "oklch": {
    "l": 0.59545,
    "c": 0.10729,
    "h": 226.7
  },
  "luminance": 0.21861
}

Semantic roles & 50–950 ramp

primary

#1D8BB0

secondary

#CA7A5F

accent

#6739EE

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1D8BB0

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

Preview Lab → · Contrast checker → · Palette generator →