#378CBA#378CBA

#378CBA is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 60.9% C 0.106 H 236.1°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#378CBA
RGB	rgb(55, 140, 186)
HSL	hsl(201, 54%, 47%)
HSV	hsv(201, 70%, 73%)
CMYK	cmyk(70.4%, 24.7%, 0%, 27.1%)
CIE-LAB	lab(55.19, -10.37, -31.42)
CIE-LCH	lch(55.19, 33.09, 251.73°)
OKLab	oklab(60.9% -0.0594 -0.0884)
OKLCH	oklch(60.9% 0.107 236.1)
XYZ	xyz(19.8131, 23.1114, 49.8616)
Luminance	0.2311 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378CBA #BA6537

analogous

#37BAA7 #378CBA #374ABA

triadic

#378CBA #BA378C #8CBA37

tetradic

#378CBA #A737BA #BA6537 #4ABA37

square

#378CBA #A737BA #BA6537 #4ABA37

split-complementary

#378CBA #BA374A #BAA737

monochromatic

#1B455C #29688B #378CBA #5FA8D0 #8EC2DE

Accessibility & contrast

On white

3.73

#378CBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#378CBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378CBA

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378CBA	#FFFFFF	#000000	##000000
##378CBA	1.00	3.73	5.62	5.62
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#768BBC

Deuteranopia (green-blind)

#647EB9

Tritanopia (blue-blind)

#00989C

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378cba;
/* rgb */ color: rgb(55, 140, 186);
/* oklch */ color: oklch(60.9% 0.106 236.1);

Tailwind

colors: {
  custom: {
    50: '#7eadcf',
    500: '#378cba',
    950: '#000000',
  },
}

SCSS

$custom: #378cba;
$custom-light: #7eadcf;
$custom-dark: #000000;

JSON

{
  "hex": "#378cba",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 186
  },
  "hsl": {
    "h": 201.069,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.60897,
    "c": 0.1065,
    "h": 236.1
  },
  "luminance": 0.23114
}

Semantic roles & 50–950 ramp

primary

#378CBA

secondary

#C89C85

accent

#7E4ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378CBA

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

Preview Lab → · Contrast checker → · Palette generator →