#378ECD#378ECD

#378ECD is a light, vivid cyan. Relative luminance 0.246; OKLCH L 62.3% C 0.126 H 244.0°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#378ECD
RGB	rgb(55, 142, 205)
HSL	hsl(205, 60%, 51%)
HSV	hsv(205, 73%, 80%)
CMYK	cmyk(73.2%, 30.7%, 0%, 19.6%)
CIE-LAB	lab(56.65, -4.92, -39.90)
CIE-LCH	lch(56.65, 40.20, 262.97°)
OKLab	oklab(62.34% -0.0552 -0.113)
OKLCH	oklch(62.34% 0.126 244)
XYZ	xyz(22.2637, 24.5635, 61.3136)
Luminance	0.2457 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378ECD #CD7637

analogous

#37CDC1 #378ECD #3743CD

triadic

#378ECD #CD378E #8ECD37

tetradic

#378ECD #C137CD #CD7637 #43CD37

square

#378ECD #C137CD #CD7637 #43CD37

split-complementary

#378ECD #CD3743 #CDC137

monochromatic

#1C4B6E #286D9F #378ECD #68AAD9 #99C5E5

Accessibility & contrast

On white

3.55

#378ECD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#378ECD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378ECD

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378ECD	#FFFFFF	#000000	##000000
##378ECD	1.00	3.55	5.91	5.91
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7190D0

Deuteranopia (green-blind)

#5C82CC

Tritanopia (blue-blind)

#009DA4

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #378ecd;
/* rgb */ color: rgb(55, 142, 205);
/* oklch */ color: oklch(62.3% 0.126 244.0);

Tailwind

colors: {
  custom: {
    50: '#81aedc',
    500: '#378ecd',
    950: '#000000',
  },
}

SCSS

$custom: #378ecd;
$custom-light: #81aedc;
$custom-dark: #000000;

JSON

{
  "hex": "#378ecd",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 205
  },
  "hsl": {
    "h": 205.2,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.62339,
    "c": 0.12576,
    "h": 244
  },
  "luminance": 0.24566
}

Semantic roles & 50–950 ramp

primary

#378ECD

secondary

#D1AB8F

accent

#8745E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #378ECD

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

Preview Lab → · Contrast checker → · Palette generator →