#378EAA#378EAA

#378EAA is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 60.6% C 0.092 H 222.8°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#378EAA
RGB	rgb(55, 142, 170)
HSL	hsl(195, 51%, 44%)
HSV	hsv(195, 68%, 67%)
CMYK	cmyk(67.6%, 16.5%, 0%, 33.3%)
CIE-LAB	lab(55.13, -16.83, -22.36)
CIE-LCH	lch(55.13, 27.99, 233.03°)
OKLab	oklab(60.63% -0.0673 -0.0624)
OKLCH	oklch(60.63% 0.092 222.8)
XYZ	xyz(18.5013, 23.0585, 41.4981)
Luminance	0.2306 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378EAA #AA5337

analogous

#37AA8D #378EAA #3755AA

triadic

#378EAA #AA378E #8EAA37

tetradic

#378EAA #8D37AA #AA5337 #55AA37

square

#378EAA #8D37AA #AA5337 #55AA37

split-complementary

#378EAA #AA3755 #AA8D37

monochromatic

#19414E #28677C #378EAA #56ACC8 #84C3D7

Accessibility & contrast

On white

3.74

#378EAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#378EAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378EAA

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378EAA	#FFFFFF	#000000	##000000
##378EAA	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8BAB

Deuteranopia (green-blind)

#6E7FAA

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378eaa;
/* rgb */ color: rgb(55, 142, 170);
/* oklch */ color: oklch(60.6% 0.092 222.8);

Tailwind

colors: {
  custom: {
    50: '#7cafc3',
    500: '#378eaa',
    950: '#000000',
  },
}

SCSS

$custom: #378eaa;
$custom-light: #7cafc3;
$custom-dark: #000000;

JSON

{
  "hex": "#378eaa",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 170
  },
  "hsl": {
    "h": 194.609,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.60635,
    "c": 0.09183,
    "h": 222.8
  },
  "luminance": 0.23061
}

Semantic roles & 50–950 ramp

primary

#378EAA

secondary

#C18D7C

accent

#704DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #378EAA

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

Preview Lab → · Contrast checker → · Palette generator →