#3788DA#3788DA

#3788DA is a mid, vivid cyan. Relative luminance 0.235; OKLCH L 61.7% C 0.147 H 251.7°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#3788DA
RGB	rgb(55, 136, 218)
HSL	hsl(210, 69%, 54%)
HSV	hsv(210, 75%, 85%)
CMYK	cmyk(74.8%, 37.6%, 0%, 14.5%)
CIE-LAB	lab(55.56, 3.25, -48.93)
CIE-LCH	lch(55.56, 49.04, 273.80°)
OKLab	oklab(61.7% -0.0461 -0.1395)
OKLCH	oklch(61.7% 0.147 251.7)
XYZ	xyz(23.0298, 23.4798, 69.6344)
Luminance	0.2348 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3788DA #DA8937

analogous

#37D9DA #3788DA #3737DA

triadic

#3788DA #DA3788 #88DA37

tetradic

#3788DA #DA37D9 #DA8937 #37DA37

square

#3788DA #DA37D9 #DA8937 #37DA37

split-complementary

#3788DA #DA3737 #D9DA37

monochromatic

#184B7F #2169B3 #3788DA #6BA7E4 #9EC5ED

Accessibility & contrast

On white

3.69

#3788DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#3788DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3788DA

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3788DA	#FFFFFF	#000000	##000000
##3788DA	1.00	3.69	5.70	5.70
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#628DDD

Deuteranopia (green-blind)

#497ED8

Tritanopia (blue-blind)

#009BA6

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3788da;
/* rgb */ color: rgb(55, 136, 218);
/* oklch */ color: oklch(61.7% 0.147 251.7);

Tailwind

colors: {
  custom: {
    50: '#83aae6',
    500: '#3788da',
    950: '#000000',
  },
}

SCSS

$custom: #3788da;
$custom-light: #83aae6;
$custom-dark: #000000;

JSON

{
  "hex": "#3788da",
  "rgb": {
    "r": 55,
    "g": 136,
    "b": 218
  },
  "hsl": {
    "h": 210.184,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.61701,
    "c": 0.1469,
    "h": 251.7
  },
  "luminance": 0.23482
}

Semantic roles & 50–950 ramp

primary

#3788DA

secondary

#D9B793

accent

#943CEC

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #3788DA

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

Preview Lab → · Contrast checker → · Palette generator →