#3788AA#3788AA

#3788AA is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.2% C 0.093 H 229.1°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#3788AA
RGB	rgb(55, 136, 170)
HSL	hsl(198, 51%, 44%)
HSV	hsv(198, 68%, 67%)
CMYK	cmyk(67.6%, 20%, 0%, 33.3%)
CIE-LAB	lab(53.30, -13.54, -25.19)
CIE-LCH	lch(53.30, 28.59, 241.74°)
OKLab	oklab(59.17% -0.061 -0.0705)
OKLCH	oklch(59.17% 0.093 229.1)
XYZ	xyz(17.6325, 21.3209, 41.2085)
Luminance	0.2132 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3788AA #AA5937

analogous

#37AA93 #3788AA #374FAA

triadic

#3788AA #AA3788 #88AA37

tetradic

#3788AA #9337AA #AA5937 #4FAA37

square

#3788AA #9337AA #AA5937 #4FAA37

split-complementary

#3788AA #AA374F #AA9337

monochromatic

#193E4E #28637C #3788AA #56A6C8 #84BFD7

Accessibility & contrast

On white

3.99

#3788AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#3788AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3788AA

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3788AA	#FFFFFF	#000000	##000000
##3788AA	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7686AC

Deuteranopia (green-blind)

#677AAA

Tritanopia (blue-blind)

#009293

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3788aa;
/* rgb */ color: rgb(55, 136, 170);
/* oklch */ color: oklch(59.2% 0.093 229.1);

Tailwind

colors: {
  custom: {
    50: '#7baac3',
    500: '#3788aa',
    950: '#000000',
  },
}

SCSS

$custom: #3788aa;
$custom-light: #7baac3;
$custom-dark: #000000;

JSON

{
  "hex": "#3788aa",
  "rgb": {
    "r": 55,
    "g": 136,
    "b": 170
  },
  "hsl": {
    "h": 197.739,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.59169,
    "c": 0.09323,
    "h": 229.1
  },
  "luminance": 0.21323
}

Semantic roles & 50–950 ramp

primary

#3788AA

secondary

#C1907C

accent

#774DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #3788AA

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

Preview Lab → · Contrast checker → · Palette generator →