#378CBC#378CBC

#378CBC is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 61.0% C 0.109 H 237.3°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#378CBC
RGB	rgb(55, 140, 188)
HSL	hsl(202, 55%, 48%)
HSV	hsv(202, 71%, 74%)
CMYK	cmyk(70.7%, 25.5%, 0%, 26.3%)
CIE-LAB	lab(55.27, -9.69, -32.42)
CIE-LCH	lch(55.27, 33.84, 253.36°)
OKLab	oklab(61% -0.0587 -0.0913)
OKLCH	oklch(61% 0.109 237.3)
XYZ	xyz(20.0272, 23.1970, 50.9892)
Luminance	0.2320 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378CBC #BC6737

analogous

#37BCA9 #378CBC #3749BC

triadic

#378CBC #BC378C #8CBC37

tetradic

#378CBC #A937BC #BC6737 #49BC37

square

#378CBC #A937BC #BC6737 #49BC37

split-complementary

#378CBC #BC3749 #BCA937

monochromatic

#1B455D #29698D #378CBC #60A8D0 #8FC2DE

Accessibility & contrast

On white

3.72

#378CBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#378CBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378CBC

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378CBC	#FFFFFF	#000000	##000000
##378CBC	1.00	3.72	5.64	5.64
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#758CBE

Deuteranopia (green-blind)

#637FBB

Tritanopia (blue-blind)

#00989C

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378cbc;
/* rgb */ color: rgb(55, 140, 188);
/* oklch */ color: oklch(61.0% 0.109 237.3);

Tailwind

colors: {
  custom: {
    50: '#7eadd0',
    500: '#378cbc',
    950: '#000000',
  },
}

SCSS

$custom: #378cbc;
$custom-light: #7eadd0;
$custom-dark: #000000;

JSON

{
  "hex": "#378cbc",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 188
  },
  "hsl": {
    "h": 201.654,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.60995,
    "c": 0.10855,
    "h": 237.3
  },
  "luminance": 0.23199
}

Semantic roles & 50–950 ramp

primary

#378CBC

secondary

#C99E86

accent

#7F4ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #378CBC

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

Preview Lab → · Contrast checker → · Palette generator →