#1798B4#1798B4

#1798B4 is a light, moderate cyan. Relative luminance 0.259; OKLCH L 62.9% C 0.109 H 217.8°. Best body text is #000000 at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#1798B4
RGB	rgb(23, 152, 180)
HSL	hsl(191, 77%, 40%)
HSV	hsv(191, 87%, 71%)
CMYK	cmyk(87.2%, 15.6%, 0%, 29.4%)
CIE-LAB	lab(57.97, -22.36, -23.75)
CIE-LCH	lch(57.97, 32.62, 226.73°)
OKLab	oklab(62.87% -0.0858 -0.0665)
OKLCH	oklch(62.87% 0.109 217.8)
XYZ	xyz(19.8163, 25.9313, 47.1320)
Luminance	0.2593 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1798B4 #B43317

analogous

#17B482 #1798B4 #1749B4

triadic

#1798B4 #B41798 #98B417

tetradic

#1798B4 #8217B4 #B43317 #49B417

square

#1798B4 #8217B4 #B43317 #49B417

split-complementary

#1798B4 #B41749 #B48217

monochromatic

#093C47 #106A7E #1798B4 #25C1E3 #5BD1EA

Accessibility & contrast

On white

3.39

#1798B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.19

#1798B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1798B4

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1798B4	#FFFFFF	#000000	##000000
##1798B4	1.00	3.39	6.19	6.19
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.19	21.00	1.00	1.00
##000000	6.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8693B6

Deuteranopia (green-blind)

#7285B4

Tritanopia (blue-blind)

#00A2A1

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #1798b4;
/* rgb */ color: rgb(23, 152, 180);
/* oklch */ color: oklch(62.9% 0.109 217.8);

Tailwind

colors: {
  custom: {
    50: '#75b6ca',
    500: '#1798b4',
    950: '#000000',
  },
}

SCSS

$custom: #1798b4;
$custom-light: #75b6ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1798b4",
  "rgb": {
    "r": 23,
    "g": 152,
    "b": 180
  },
  "hsl": {
    "h": 190.701,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.62866,
    "c": 0.10856,
    "h": 217.8
  },
  "luminance": 0.25934
}

Semantic roles & 50–950 ramp

primary

#1798B4

secondary

#CE6E59

accent

#5634F4

background

#F7FBFC

surface

#EEF6F8

border

#C9D0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #1798B4

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

Preview Lab → · Contrast checker → · Palette generator →