#3789AC#3789AC

#3789AC is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.5% C 0.095 H 229.6°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#3789AC
RGB	rgb(55, 137, 172)
HSL	hsl(198, 52%, 45%)
HSV	hsv(198, 68%, 67%)
CMYK	cmyk(68%, 20.3%, 0%, 32.5%)
CIE-LAB	lab(53.69, -13.43, -25.74)
CIE-LCH	lch(53.69, 29.03, 242.45°)
OKLab	oklab(59.51% -0.0613 -0.0721)
OKLCH	oklch(59.51% 0.095 229.6)
XYZ	xyz(17.9646, 21.6802, 42.2596)
Luminance	0.2168 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3789AC #AC5A37

analogous

#37AC95 #3789AC #374EAC

triadic

#3789AC #AC3789 #89AC37

tetradic

#3789AC #9537AC #AC5A37 #4EAC37

square

#3789AC #9537AC #AC5A37 #4EAC37

split-complementary

#3789AC #AC374E #AC9537

monochromatic

#193F4F #28647E #3789AC #57A7C9 #85BFD8

Accessibility & contrast

On white

3.94

#3789AC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#3789AC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3789AC

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3789AC	#FFFFFF	#000000	##000000
##3789AC	1.00	3.94	5.34	5.34
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7787AE

Deuteranopia (green-blind)

#677BAC

Tritanopia (blue-blind)

#009395

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3789ac;
/* rgb */ color: rgb(55, 137, 172);
/* oklch */ color: oklch(59.5% 0.095 229.6);

Tailwind

colors: {
  custom: {
    50: '#7cabc4',
    500: '#3789ac',
    950: '#000000',
  },
}

SCSS

$custom: #3789ac;
$custom-light: #7cabc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3789ac",
  "rgb": {
    "r": 55,
    "g": 137,
    "b": 172
  },
  "hsl": {
    "h": 197.949,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.59505,
    "c": 0.09462,
    "h": 229.6
  },
  "luminance": 0.21682
}

Semantic roles & 50–950 ramp

primary

#3789AC

secondary

#C2927D

accent

#774DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #3789AC

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

Preview Lab → · Contrast checker → · Palette generator →