#3780E2#3780E2

#3780E2 is a mid, vivid cyan. Relative luminance 0.217; OKLCH L 60.4% C 0.166 H 256.9°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#3780E2
RGB	rgb(55, 128, 226)
HSL	hsl(214, 75%, 55%)
HSV	hsv(214, 76%, 89%)
CMYK	cmyk(75.7%, 43.4%, 0%, 11.4%)
CIE-LAB	lab(53.75, 11.01, -56.31)
CIE-LCH	lch(53.75, 57.38, 281.07°)
OKLab	oklab(60.43% -0.0375 -0.1613)
OKLCH	oklch(60.43% 0.166 256.9)
XYZ	xyz(23.0171, 21.7389, 74.9197)
Luminance	0.2174 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3780E2 #E29937

analogous

#37D5E2 #3780E2 #4437E2

triadic

#3780E2 #E23780 #80E237

tetradic

#3780E2 #E237D5 #E29937 #37E244

square

#3780E2 #E237D5 #E29937 #37E244

split-complementary

#3780E2 #E24437 #D5E237

monochromatic

#14478B #1C62C0 #3780E2 #6CA2EA #A2C4F2

Accessibility & contrast

On white

3.93

#3780E2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#3780E2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3780E2

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3780E2	#FFFFFF	#000000	##000000
##3780E2	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F89E6

Deuteranopia (green-blind)

#2D79E0

Tritanopia (blue-blind)

#0097A6

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3780e2;
/* rgb */ color: rgb(55, 128, 226);
/* oklch */ color: oklch(60.4% 0.166 256.9);

Tailwind

colors: {
  custom: {
    50: '#85a4ec',
    500: '#3780e2',
    950: '#000000',
  },
}

SCSS

$custom: #3780e2;
$custom-light: #85a4ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3780e2",
  "rgb": {
    "r": 55,
    "g": 128,
    "b": 226
  },
  "hsl": {
    "h": 214.386,
    "s": 74.672,
    "l": 55.098
  },
  "oklch": {
    "l": 0.60434,
    "c": 0.16558,
    "h": 256.9
  },
  "luminance": 0.21742
}

Semantic roles & 50–950 ramp

primary

#3780E2

secondary

#DEC097

accent

#A237F1

background

#F8FAFE

surface

#F0F3FD

border

#CBCDD5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #3780E2

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

Preview Lab → · Contrast checker → · Palette generator →