#378EA7#378EA7

#378EA7 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.5% C 0.090 H 220.3°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#378EA7
RGB	rgb(55, 142, 167)
HSL	hsl(193, 50%, 44%)
HSV	hsv(193, 67%, 65%)
CMYK	cmyk(67.1%, 15%, 0%, 34.5%)
CIE-LAB	lab(55.02, -17.81, -20.82)
CIE-LCH	lch(55.02, 27.40, 229.46°)
OKLab	oklab(60.5% -0.0685 -0.058)
OKLCH	oklch(60.5% 0.09 220.3)
XYZ	xyz(18.2208, 22.9463, 40.0205)
Luminance	0.2295 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378EA7 #A75037

analogous

#37A788 #378EA7 #3756A7

triadic

#378EA7 #A7378E #8EA737

tetradic

#378EA7 #8837A7 #A75037 #56A737

square

#378EA7 #8837A7 #A75037 #56A737

split-complementary

#378EA7 #A73756 #A78837

monochromatic

#19404B #286779 #378EA7 #54ADC7 #82C3D6

Accessibility & contrast

On white

3.76

#378EA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#378EA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378EA7

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378EA7	#FFFFFF	#000000	##000000
##378EA7	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8AA8

Deuteranopia (green-blind)

#6F7FA7

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378ea7;
/* rgb */ color: rgb(55, 142, 167);
/* oklch */ color: oklch(60.5% 0.090 220.3);

Tailwind

colors: {
  custom: {
    50: '#7bafc1',
    500: '#378ea7',
    950: '#000000',
  },
}

SCSS

$custom: #378ea7;
$custom-light: #7bafc1;
$custom-dark: #000000;

JSON

{
  "hex": "#378ea7",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 167
  },
  "hsl": {
    "h": 193.393,
    "s": 50.45,
    "l": 43.529
  },
  "oklch": {
    "l": 0.60504,
    "c": 0.0898,
    "h": 220.3
  },
  "luminance": 0.22948
}

Semantic roles & 50–950 ramp

primary

#378EA7

secondary

#C08A7A

accent

#6D4EDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378EA7

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

Preview Lab → · Contrast checker → · Palette generator →