#3780A4#3780A4

#3780A4 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 56.9% C 0.091 H 233.0°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#3780A4
RGB	rgb(55, 128, 164)
HSL	hsl(200, 50%, 43%)
HSV	hsv(200, 66%, 64%)
CMYK	cmyk(66.5%, 22%, 0%, 35.7%)
CIE-LAB	lab(50.60, -11.05, -25.88)
CIE-LCH	lch(50.60, 28.14, 246.88°)
OKLab	oklab(56.94% -0.0547 -0.0726)
OKLCH	oklch(56.94% 0.091 233)
XYZ	xyz(15.9929, 18.9292, 37.9256)
Luminance	0.1893 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3780A4 #A45B37

analogous

#37A492 #3780A4 #3749A4

triadic

#3780A4 #A43780 #80A437

tetradic

#3780A4 #9237A4 #A45B37 #49A437

square

#3780A4 #9237A4 #A45B37 #49A437

split-complementary

#3780A4 #A43749 #A49237

monochromatic

#183848 #285C76 #3780A4 #53A0C5 #81B9D5

Accessibility & contrast

On white

4.39

#3780A4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#3780A4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3780A4

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3780A4	#FFFFFF	#000000	##000000
##3780A4	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7FA6

Deuteranopia (green-blind)

#5F74A3

Tritanopia (blue-blind)

#008A8C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3780a4;
/* rgb */ color: rgb(55, 128, 164);
/* oklch */ color: oklch(56.9% 0.091 233.0);

Tailwind

colors: {
  custom: {
    50: '#7aa4bf',
    500: '#3780a4',
    950: '#000000',
  },
}

SCSS

$custom: #3780a4;
$custom-light: #7aa4bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3780a4",
  "rgb": {
    "r": 55,
    "g": 128,
    "b": 164
  },
  "hsl": {
    "h": 199.817,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.56939,
    "c": 0.09085,
    "h": 233
  },
  "luminance": 0.18931
}

Semantic roles & 50–950 ramp

primary

#3780A4

secondary

#BE9079

accent

#7C4FD9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3780A4

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

Preview Lab → · Contrast checker → · Palette generator →