#378AA1#378AA1

#378AA1 is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.3% C 0.086 H 219.3°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#378AA1
RGB	rgb(55, 138, 161)
HSL	hsl(193, 49%, 42%)
HSV	hsv(193, 66%, 63%)
CMYK	cmyk(65.8%, 14.3%, 0%, 36.9%)
CIE-LAB	lab(53.56, -17.58, -19.60)
CIE-LCH	lch(53.56, 26.33, 228.11°)
OKLab	oklab(59.26% -0.0666 -0.0546)
OKLCH	oklch(59.26% 0.086 219.3)
XYZ	xyz(17.0944, 21.5606, 36.9720)
Luminance	0.2156 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AA1 #A14E37

analogous

#37A183 #378AA1 #3755A1

triadic

#378AA1 #A1378A #8AA137

tetradic

#378AA1 #8337A1 #A14E37 #55A137

square

#378AA1 #8337A1 #A14E37 #55A137

split-complementary

#378AA1 #A13755 #A18337

monochromatic

#183C46 #276373 #378AA1 #51ABC4 #7FC1D3

Accessibility & contrast

On white

3.95

#378AA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#378AA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AA1

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AA1	#FFFFFF	#000000	##000000
##378AA1	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C86A2

Deuteranopia (green-blind)

#6D7BA1

Tritanopia (blue-blind)

#009291

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #378aa1;
/* rgb */ color: rgb(55, 138, 161);
/* oklch */ color: oklch(59.3% 0.086 219.3);

Tailwind

colors: {
  custom: {
    50: '#7aacbc',
    500: '#378aa1',
    950: '#000000',
  },
}

SCSS

$custom: #378aa1;
$custom-light: #7aacbc;
$custom-dark: #000000;

JSON

{
  "hex": "#378aa1",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 161
  },
  "hsl": {
    "h": 193.019,
    "s": 49.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.59259,
    "c": 0.08615,
    "h": 219.3
  },
  "luminance": 0.21562
}

Semantic roles & 50–950 ramp

primary

#378AA1

secondary

#BD8677

accent

#6D4FD9

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378AA1

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

Preview Lab → · Contrast checker → · Palette generator →