#1784B4#1784B4

#1784B4 is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 57.9% C 0.116 H 234.4°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#1784B4
RGB	rgb(23, 132, 180)
HSL	hsl(198, 77%, 40%)
HSV	hsv(198, 87%, 71%)
CMYK	cmyk(87.2%, 26.7%, 0%, 29.4%)
CIE-LAB	lab(51.81, -11.47, -33.30)
CIE-LCH	lch(51.81, 35.22, 251.00°)
OKLab	oklab(57.93% -0.0674 -0.0942)
OKLCH	oklch(57.93% 0.116 234.4)
XYZ	xyz(16.8395, 19.9778, 46.1397)
Luminance	0.1998 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1784B4 #B44717

analogous

#17B496 #1784B4 #1735B4

triadic

#1784B4 #B41784 #84B417

tetradic

#1784B4 #9617B4 #B44717 #35B417

square

#1784B4 #9617B4 #B44717 #35B417

split-complementary

#1784B4 #B41735 #B49617

monochromatic

#093447 #105C7E #1784B4 #25A9E3 #5BBEEA

Accessibility & contrast

On white

4.20

#1784B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#1784B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1784B4

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1784B4	#FFFFFF	#000000	##000000
##1784B4	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C83B6

Deuteranopia (green-blind)

#5875B3

Tritanopia (blue-blind)

#009194

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #1784b4;
/* rgb */ color: rgb(23, 132, 180);
/* oklch */ color: oklch(57.9% 0.116 234.4);

Tailwind

colors: {
  custom: {
    50: '#73a7ca',
    500: '#1784b4',
    950: '#000000',
  },
}

SCSS

$custom: #1784b4;
$custom-light: #73a7ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1784b4",
  "rgb": {
    "r": 23,
    "g": 132,
    "b": 180
  },
  "hsl": {
    "h": 198.344,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.57927,
    "c": 0.11582,
    "h": 234.4
  },
  "luminance": 0.1998
}

Semantic roles & 50–950 ramp

primary

#1784B4

secondary

#CE7D59

accent

#6F34F4

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #1784B4

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

Preview Lab → · Contrast checker → · Palette generator →