#378FBD#378FBD

#378FBD is a mid, moderate cyan. Relative luminance 0.241; OKLCH L 61.8% C 0.108 H 235.3°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#378FBD
RGB	rgb(55, 143, 189)
HSL	hsl(201, 55%, 48%)
HSV	hsv(201, 71%, 74%)
CMYK	cmyk(70.9%, 24.3%, 0%, 25.9%)
CIE-LAB	lab(56.22, -11.04, -31.52)
CIE-LCH	lch(56.22, 33.40, 250.70°)
OKLab	oklab(61.76% -0.0613 -0.0887)
OKLCH	oklch(61.76% 0.108 235.3)
XYZ	xyz(20.5797, 24.1290, 51.7070)
Luminance	0.2413 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378FBD #BD6537

analogous

#37BDA8 #378FBD #374CBD

triadic

#378FBD #BD378F #8FBD37

tetradic

#378FBD #A837BD #BD6537 #4CBD37

square

#378FBD #A837BD #BD6537 #4CBD37

split-complementary

#378FBD #BD374C #BDA837

monochromatic

#1B475E #296B8E #378FBD #60AAD1 #90C4DF

Accessibility & contrast

On white

3.60

#378FBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#378FBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378FBD

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378FBD	#FFFFFF	#000000	##000000
##378FBD	1.00	3.60	5.83	5.83
#FFFFFF	3.60	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)

#798EBF

Deuteranopia (green-blind)

#6781BC

Tritanopia (blue-blind)

#009B9F

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #378fbd;
/* rgb */ color: rgb(55, 143, 189);
/* oklch */ color: oklch(61.8% 0.108 235.3);

Tailwind

colors: {
  custom: {
    50: '#7eafd1',
    500: '#378fbd',
    950: '#000000',
  },
}

SCSS

$custom: #378fbd;
$custom-light: #7eafd1;
$custom-dark: #000000;

JSON

{
  "hex": "#378fbd",
  "rgb": {
    "r": 55,
    "g": 143,
    "b": 189
  },
  "hsl": {
    "h": 200.597,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.61759,
    "c": 0.10785,
    "h": 235.3
  },
  "luminance": 0.24131
}

Semantic roles & 50–950 ramp

primary

#378FBD

secondary

#C99D86

accent

#7D4ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #378FBD

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

Preview Lab → · Contrast checker → · Palette generator →