#1798B3#1798B3

#1798B3 is a light, moderate cyan. Relative luminance 0.259; OKLCH L 62.8% C 0.108 H 217.0°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#1798B3
RGB	rgb(23, 152, 179)
HSL	hsl(190, 77%, 40%)
HSV	hsv(190, 87%, 70%)
CMYK	cmyk(87.2%, 15.1%, 0%, 29.8%)
CIE-LAB	lab(57.93, -22.70, -23.25)
CIE-LCH	lch(57.93, 32.49, 225.68°)
OKLab	oklab(62.82% -0.0862 -0.0651)
OKLCH	oklch(62.82% 0.108 217)
XYZ	xyz(19.7147, 25.8907, 46.5974)
Luminance	0.2589 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1798B3 #B33217

analogous

#17B380 #1798B3 #174AB3

triadic

#1798B3 #B31798 #98B317

tetradic

#1798B3 #8017B3 #B33217 #4AB317

square

#1798B3 #8017B3 #B33217 #4AB317

split-complementary

#1798B3 #B3174A #B38017

monochromatic

#093C47 #106A7D #1798B3 #24C2E3 #5BD1EA

Accessibility & contrast

On white

3.40

#1798B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#1798B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1798B3

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1798B3	#FFFFFF	#000000	##000000
##1798B3	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8693B4

Deuteranopia (green-blind)

#7385B3

Tritanopia (blue-blind)

#00A1A1

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #1798b3;
/* rgb */ color: rgb(23, 152, 179);
/* oklch */ color: oklch(62.8% 0.108 217.0);

Tailwind

colors: {
  custom: {
    50: '#75b6c9',
    500: '#1798b3',
    950: '#000000',
  },
}

SCSS

$custom: #1798b3;
$custom-light: #75b6c9;
$custom-dark: #000000;

JSON

{
  "hex": "#1798b3",
  "rgb": {
    "r": 23,
    "g": 152,
    "b": 179
  },
  "hsl": {
    "h": 190.385,
    "s": 77.228,
    "l": 39.608
  },
  "oklch": {
    "l": 0.62822,
    "c": 0.108,
    "h": 217
  },
  "luminance": 0.25893
}

Semantic roles & 50–950 ramp

primary

#1798B3

secondary

#CD6D58

accent

#5534F4

background

#F7FBFC

surface

#EEF6F8

border

#C9D0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #1798B3

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

Preview Lab → · Contrast checker → · Palette generator →