#378CBD#378CBD

#378CBD is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 61.0% C 0.110 H 237.8°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#378CBD
RGB	rgb(55, 140, 189)
HSL	hsl(202, 55%, 48%)
HSV	hsv(202, 71%, 74%)
CMYK	cmyk(70.9%, 25.9%, 0%, 25.9%)
CIE-LAB	lab(55.32, -9.35, -32.92)
CIE-LCH	lch(55.32, 34.22, 254.15°)
OKLab	oklab(61.05% -0.0583 -0.0928)
OKLCH	oklch(61.05% 0.11 237.8)
XYZ	xyz(20.1353, 23.2403, 51.5589)
Luminance	0.2324 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378CBD #BD6837

analogous

#37BDAB #378CBD #3749BD

triadic

#378CBD #BD378C #8CBD37

tetradic

#378CBD #AB37BD #BD6837 #49BD37

square

#378CBD #AB37BD #BD6837 #49BD37

split-complementary

#378CBD #BD3749 #BDAB37

monochromatic

#1B465E #29698E #378CBD #60A8D1 #90C2DF

Accessibility & contrast

On white

3.72

#378CBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#378CBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378CBD

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378CBD	#FFFFFF	#000000	##000000
##378CBD	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#758CBF

Deuteranopia (green-blind)

#637FBC

Tritanopia (blue-blind)

#00989D

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378cbd;
/* rgb */ color: rgb(55, 140, 189);
/* oklch */ color: oklch(61.0% 0.110 237.8);

Tailwind

colors: {
  custom: {
    50: '#7eadd1',
    500: '#378cbd',
    950: '#000000',
  },
}

SCSS

$custom: #378cbd;
$custom-light: #7eadd1;
$custom-dark: #000000;

JSON

{
  "hex": "#378cbd",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 189
  },
  "hsl": {
    "h": 201.94,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.61045,
    "c": 0.10958,
    "h": 237.8
  },
  "luminance": 0.23243
}

Semantic roles & 50–950 ramp

primary

#378CBD

secondary

#C99F86

accent

#804ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #378CBD

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

Preview Lab → · Contrast checker → · Palette generator →