#378AA5#378AA5

#378AA5 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.4% C 0.089 H 222.9°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#378AA5
RGB	rgb(55, 138, 165)
HSL	hsl(195, 50%, 43%)
HSV	hsv(195, 67%, 65%)
CMYK	cmyk(66.7%, 16.4%, 0%, 35.3%)
CIE-LAB	lab(53.71, -16.29, -21.67)
CIE-LCH	lch(53.71, 27.11, 233.07°)
OKLab	oklab(59.43% -0.065 -0.0605)
OKLCH	oklch(59.43% 0.089 222.9)
XYZ	xyz(17.4528, 21.7039, 38.8595)
Luminance	0.2171 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AA5 #A55237

analogous

#37A589 #378AA5 #3753A5

triadic

#378AA5 #A5378A #8AA537

tetradic

#378AA5 #8937A5 #A55237 #53A537

square

#378AA5 #8937A5 #A55237 #53A537

split-complementary

#378AA5 #A53753 #A58937

monochromatic

#183D49 #286477 #378AA5 #53AAC6 #81C1D5

Accessibility & contrast

On white

3.93

#378AA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#378AA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AA5

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AA5	#FFFFFF	#000000	##000000
##378AA5	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A87A6

Deuteranopia (green-blind)

#6B7BA5

Tritanopia (blue-blind)

#009293

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #378aa5;
/* rgb */ color: rgb(55, 138, 165);
/* oklch */ color: oklch(59.4% 0.089 222.9);

Tailwind

colors: {
  custom: {
    50: '#7bacbf',
    500: '#378aa5',
    950: '#000000',
  },
}

SCSS

$custom: #378aa5;
$custom-light: #7bacbf;
$custom-dark: #000000;

JSON

{
  "hex": "#378aa5",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 165
  },
  "hsl": {
    "h": 194.727,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.59433,
    "c": 0.08881,
    "h": 222.9
  },
  "luminance": 0.21706
}

Semantic roles & 50–950 ramp

primary

#378AA5

secondary

#BF8A79

accent

#704EDA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378AA5

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

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