#3788B2#3788B2

#3788B2 is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.5% C 0.101 H 234.8°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#3788B2
RGB	rgb(55, 136, 178)
HSL	hsl(200, 53%, 46%)
HSV	hsv(200, 69%, 70%)
CMYK	cmyk(69.1%, 23.6%, 0%, 30.2%)
CIE-LAB	lab(53.64, -10.84, -29.26)
CIE-LCH	lch(53.64, 31.21, 249.67°)
OKLab	oklab(59.55% -0.0581 -0.0822)
OKLCH	oklch(59.55% 0.101 234.8)
XYZ	xyz(18.4124, 21.6329, 45.3160)
Luminance	0.2163 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3788B2 #B26137

analogous

#37B29E #3788B2 #374AB2

triadic

#3788B2 #B23788 #88B237

tetradic

#3788B2 #9E37B2 #B26137 #4AB237

square

#3788B2 #9E37B2 #B26137 #4AB237

split-complementary

#3788B2 #B2374A #B29E37

monochromatic

#1A4154 #296483 #3788B2 #5AA5CC #89BFDB

Accessibility & contrast

On white

3.94

#3788B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#3788B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3788B2

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3788B2	#FFFFFF	#000000	##000000
##3788B2	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7487B4

Deuteranopia (green-blind)

#637BB1

Tritanopia (blue-blind)

#009396

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3788b2;
/* rgb */ color: rgb(55, 136, 178);
/* oklch */ color: oklch(59.5% 0.101 234.8);

Tailwind

colors: {
  custom: {
    50: '#7caac9',
    500: '#3788b2',
    950: '#000000',
  },
}

SCSS

$custom: #3788b2;
$custom-light: #7caac9;
$custom-dark: #000000;

JSON

{
  "hex": "#3788b2",
  "rgb": {
    "r": 55,
    "g": 136,
    "b": 178
  },
  "hsl": {
    "h": 200.488,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.59548,
    "c": 0.10066,
    "h": 234.8
  },
  "luminance": 0.21635
}

Semantic roles & 50–950 ramp

primary

#3788B2

secondary

#C59880

accent

#7D4CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3788B2

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

Preview Lab → · Contrast checker → · Palette generator →