#3788D6#3788D6

#3788D6 is a mid, vivid cyan. Relative luminance 0.233; OKLCH L 61.5% C 0.142 H 250.6°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#3788D6
RGB	rgb(55, 136, 214)
HSL	hsl(209, 66%, 53%)
HSV	hsv(209, 74%, 84%)
CMYK	cmyk(74.3%, 36.4%, 0%, 16.1%)
CIE-LAB	lab(55.35, 1.81, -47.02)
CIE-LCH	lch(55.35, 47.05, 272.20°)
OKLab	oklab(61.47% -0.0471 -0.1339)
OKLCH	oklch(61.47% 0.142 250.6)
XYZ	xyz(22.5127, 23.2730, 66.9109)
Luminance	0.2328 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3788D6 #D68537

analogous

#37D6D4 #3788D6 #3738D6

triadic

#3788D6 #D63788 #88D637

tetradic

#3788D6 #D437D6 #D68537 #38D637

square

#3788D6 #D437D6 #D68537 #38D637

split-complementary

#3788D6 #D63738 #D6D437

monochromatic

#194A7A #2369AC #3788D6 #6AA6E0 #9DC4EB

Accessibility & contrast

On white

3.71

#3788D6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#3788D6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3788D6

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3788D6	#FFFFFF	#000000	##000000
##3788D6	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#648DD9

Deuteranopia (green-blind)

#4C7ED4

Tritanopia (blue-blind)

#009AA5

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3788d6;
/* rgb */ color: rgb(55, 136, 214);
/* oklch */ color: oklch(61.5% 0.142 250.6);

Tailwind

colors: {
  custom: {
    50: '#82aae3',
    500: '#3788d6',
    950: '#000000',
  },
}

SCSS

$custom: #3788d6;
$custom-light: #82aae3;
$custom-dark: #000000;

JSON

{
  "hex": "#3788d6",
  "rgb": {
    "r": 55,
    "g": 136,
    "b": 214
  },
  "hsl": {
    "h": 209.434,
    "s": 65.975,
    "l": 52.745
  },
  "oklch": {
    "l": 0.61467,
    "c": 0.14191,
    "h": 250.6
  },
  "luminance": 0.23276
}

Semantic roles & 50–950 ramp

primary

#3788D6

secondary

#D7B492

accent

#923FE9

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3788D6

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

Preview Lab → · Contrast checker → · Palette generator →