#3783A4#3783A4

#3783A4 is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 57.7% C 0.090 H 229.8°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3783A4
RGB	rgb(55, 131, 164)
HSL	hsl(198, 50%, 43%)
HSV	hsv(198, 66%, 64%)
CMYK	cmyk(66.5%, 20.1%, 0%, 35.7%)
CIE-LAB	lab(51.52, -12.75, -24.46)
CIE-LCH	lch(51.52, 27.58, 242.48°)
OKLab	oklab(57.67% -0.0579 -0.0685)
OKLCH	oklch(57.67% 0.09 229.8)
XYZ	xyz(16.3900, 19.7234, 38.0580)
Luminance	0.1973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3783A4 #A45837

analogous

#37A48E #3783A4 #374CA4

triadic

#3783A4 #A43783 #83A437

tetradic

#3783A4 #8E37A4 #A45837 #4CA437

square

#3783A4 #8E37A4 #A45837 #4CA437

split-complementary

#3783A4 #A4374C #A48E37

monochromatic

#183A48 #285E76 #3783A4 #53A3C5 #81BBD5

Accessibility & contrast

On white

4.25

#3783A4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#3783A4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783A4

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3783A4	#FFFFFF	#000000	##000000
##3783A4	1.00	4.25	4.95	4.95
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7281A6

Deuteranopia (green-blind)

#6376A4

Tritanopia (blue-blind)

#008C8E

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3783a4;
/* rgb */ color: rgb(55, 131, 164);
/* oklch */ color: oklch(57.7% 0.090 229.8);

Tailwind

colors: {
  custom: {
    50: '#7aa7bf',
    500: '#3783a4',
    950: '#000000',
  },
}

SCSS

$custom: #3783a4;
$custom-light: #7aa7bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3783a4",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 164
  },
  "hsl": {
    "h": 198.165,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.57671,
    "c": 0.08967,
    "h": 229.8
  },
  "luminance": 0.19725
}

Semantic roles & 50–950 ramp

primary

#3783A4

secondary

#BE8E79

accent

#794FD9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #3783A4

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

Preview Lab → · Contrast checker → · Palette generator →