#378CA1#378CA1

#378CA1 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.8% C 0.086 H 217.0°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#378CA1
RGB	rgb(55, 140, 161)
HSL	hsl(192, 49%, 42%)
HSV	hsv(192, 66%, 63%)
CMYK	cmyk(65.8%, 13%, 0%, 36.9%)
CIE-LAB	lab(54.17, -18.66, -18.66)
CIE-LCH	lch(54.17, 26.39, 225.00°)
OKLab	oklab(59.75% -0.0688 -0.0519)
OKLCH	oklch(59.75% 0.086 217)
XYZ	xyz(17.3840, 22.1397, 37.0685)
Luminance	0.2214 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378CA1 #A14C37

analogous

#37A181 #378CA1 #3757A1

triadic

#378CA1 #A1378C #8CA137

tetradic

#378CA1 #8137A1 #A14C37 #57A137

square

#378CA1 #8137A1 #A14C37 #57A137

split-complementary

#378CA1 #A13757 #A18137

monochromatic

#183D46 #276473 #378CA1 #51ADC4 #7FC3D3

Accessibility & contrast

On white

3.87

#378CA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#378CA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378CA1

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378CA1	#FFFFFF	#000000	##000000
##378CA1	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E88A2

Deuteranopia (green-blind)

#6F7DA1

Tritanopia (blue-blind)

#009393

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378ca1;
/* rgb */ color: rgb(55, 140, 161);
/* oklch */ color: oklch(59.8% 0.086 217.0);

Tailwind

colors: {
  custom: {
    50: '#7aadbc',
    500: '#378ca1',
    950: '#000000',
  },
}

SCSS

$custom: #378ca1;
$custom-light: #7aadbc;
$custom-dark: #000000;

JSON

{
  "hex": "#378ca1",
  "rgb": {
    "r": 55,
    "g": 140,
    "b": 161
  },
  "hsl": {
    "h": 191.887,
    "s": 49.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.59754,
    "c": 0.08619,
    "h": 217
  },
  "luminance": 0.22142
}

Semantic roles & 50–950 ramp

primary

#378CA1

secondary

#BD8577

accent

#6A4FD9

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378CA1

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

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