#378DCA#378DCA

#378DCA is a mid, vivid cyan. Relative luminance 0.241; OKLCH L 61.9% C 0.123 H 243.4°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#378DCA
RGB	rgb(55, 141, 202)
HSL	hsl(205, 58%, 50%)
HSV	hsv(205, 73%, 79%)
CMYK	cmyk(72.8%, 30.2%, 0%, 20.8%)
CIE-LAB	lab(56.21, -5.40, -38.89)
CIE-LCH	lch(56.21, 39.27, 262.10°)
OKLab	oklab(61.95% -0.0551 -0.1101)
OKLCH	oklch(61.95% 0.123 243.4)
XYZ	xyz(21.7570, 24.1238, 59.3754)
Luminance	0.2413 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DCA #CA7437

analogous

#37CABE #378DCA #3743CA

triadic

#378DCA #CA378D #8DCA37

tetradic

#378DCA #BE37CA #CA7437 #43CA37

square

#378DCA #BE37CA #CA7437 #43CA37

split-complementary

#378DCA #CA3743 #CABE37

monochromatic

#1C4A6A #296C9B #378DCA #67A9D7 #98C4E4

Accessibility & contrast

On white

3.61

#378DCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#378DCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DCA

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DCA	#FFFFFF	#000000	##000000
##378DCA	1.00	3.61	5.83	5.83
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#718ECD

Deuteranopia (green-blind)

#5D81C9

Tritanopia (blue-blind)

#009CA3

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #378dca;
/* rgb */ color: rgb(55, 141, 202);
/* oklch */ color: oklch(61.9% 0.123 243.4);

Tailwind

colors: {
  custom: {
    50: '#80aeda',
    500: '#378dca',
    950: '#000000',
  },
}

SCSS

$custom: #378dca;
$custom-light: #80aeda;
$custom-dark: #000000;

JSON

{
  "hex": "#378dca",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 202
  },
  "hsl": {
    "h": 204.898,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.61948,
    "c": 0.12312,
    "h": 243.4
  },
  "luminance": 0.24126
}

Semantic roles & 50–950 ramp

primary

#378DCA

secondary

#CFA98E

accent

#8746E1

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #378DCA

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

Preview Lab → · Contrast checker → · Palette generator →