#1D99B3#1D99B3

#1D99B3 is a light, moderate cyan. Relative luminance 0.263; OKLCH L 63.2% C 0.106 H 216.5°. Best body text is #000000 at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#1D99B3
RGB	rgb(29, 153, 179)
HSL	hsl(190, 72%, 41%)
HSV	hsv(190, 84%, 70%)
CMYK	cmyk(83.8%, 14.5%, 0%, 29.8%)
CIE-LAB	lab(58.32, -22.78, -22.65)
CIE-LCH	lch(58.32, 32.13, 224.84°)
OKLab	oklab(63.15% -0.0856 -0.0633)
OKLCH	oklch(63.15% 0.107 216.5)
XYZ	xyz(20.0311, 26.2958, 46.6589)
Luminance	0.2630 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D99B3 #B3371D

analogous

#1DB382 #1D99B3 #1D4EB3

triadic

#1D99B3 #B31D99 #99B31D

tetradic

#1D99B3 #821DB3 #B3371D #4EB31D

square

#1D99B3 #821DB3 #B3371D #4EB31D

split-complementary

#1D99B3 #B31D4E #B3821D

monochromatic

#0C3F4A #146C7E #1D99B3 #30BFDD #64D0E6

Accessibility & contrast

On white

3.35

#1D99B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.26

#1D99B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D99B3

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D99B3	#FFFFFF	#000000	##000000
##1D99B3	1.00	3.35	6.26	6.26
#FFFFFF	3.35	1.00	21.00	21.00
#000000	6.26	21.00	1.00	1.00
##000000	6.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8894B4

Deuteranopia (green-blind)

#7486B3

Tritanopia (blue-blind)

#00A2A1

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #1d99b3;
/* rgb */ color: rgb(29, 153, 179);
/* oklch */ color: oklch(63.2% 0.106 216.5);

Tailwind

colors: {
  custom: {
    50: '#76b7c9',
    500: '#1d99b3',
    950: '#000000',
  },
}

SCSS

$custom: #1d99b3;
$custom-light: #76b7c9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d99b3",
  "rgb": {
    "r": 29,
    "g": 153,
    "b": 179
  },
  "hsl": {
    "h": 190.4,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.63153,
    "c": 0.1065,
    "h": 216.5
  },
  "luminance": 0.26298
}

Semantic roles & 50–950 ramp

primary

#1D99B3

secondary

#CB7361

accent

#5839EF

background

#F7FBFC

surface

#EEF6F8

border

#C9D0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #1D99B3

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

Preview Lab → · Contrast checker → · Palette generator →