#1788B4#1788B4

#1788B4 is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 58.9% C 0.114 H 231.3°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#1788B4
RGB	rgb(23, 136, 180)
HSL	hsl(197, 77%, 40%)
HSV	hsv(197, 87%, 71%)
CMYK	cmyk(87.2%, 24.4%, 0%, 29.4%)
CIE-LAB	lab(53.04, -13.73, -31.39)
CIE-LCH	lch(53.04, 34.26, 246.38°)
OKLab	oklab(58.91% -0.071 -0.0886)
OKLCH	oklch(58.91% 0.114 231.3)
XYZ	xyz(17.3923, 21.0835, 46.3240)
Luminance	0.2109 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1788B4 #B44317

analogous

#17B491 #1788B4 #173AB4

triadic

#1788B4 #B41788 #88B417

tetradic

#1788B4 #9117B4 #B44317 #3AB417

square

#1788B4 #9117B4 #B44317 #3AB417

split-complementary

#1788B4 #B4173A #B49117

monochromatic

#093647 #105F7E #1788B4 #25AEE3 #5BC2EA

Accessibility & contrast

On white

4.03

#1788B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#1788B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1788B4

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1788B4	#FFFFFF	#000000	##000000
##1788B4	1.00	4.03	5.22	5.22
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7286B6

Deuteranopia (green-blind)

#5E79B3

Tritanopia (blue-blind)

#009497

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #1788b4;
/* rgb */ color: rgb(23, 136, 180);
/* oklch */ color: oklch(58.9% 0.114 231.3);

Tailwind

colors: {
  custom: {
    50: '#73aaca',
    500: '#1788b4',
    950: '#000000',
  },
}

SCSS

$custom: #1788b4;
$custom-light: #73aaca;
$custom-dark: #000000;

JSON

{
  "hex": "#1788b4",
  "rgb": {
    "r": 23,
    "g": 136,
    "b": 180
  },
  "hsl": {
    "h": 196.815,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.58908,
    "c": 0.11353,
    "h": 231.3
  },
  "luminance": 0.21086
}

Semantic roles & 50–950 ramp

primary

#1788B4

secondary

#CE7A59

accent

#6A34F4

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1788B4

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

Preview Lab → · Contrast checker → · Palette generator →