#378DA5#378DA5

#378DA5 is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.2% C 0.089 H 219.6°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#378DA5
RGB	rgb(55, 141, 165)
HSL	hsl(193, 50%, 43%)
HSV	hsv(193, 67%, 65%)
CMYK	cmyk(66.7%, 14.5%, 0%, 35.3%)
CIE-LAB	lab(54.63, -17.91, -20.26)
CIE-LCH	lch(54.63, 27.04, 228.52°)
OKLab	oklab(60.17% -0.0683 -0.0564)
OKLCH	oklch(60.17% 0.089 219.6)
XYZ	xyz(17.8892, 22.5767, 39.0050)
Luminance	0.2258 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DA5 #A54F37

analogous

#37A586 #378DA5 #3756A5

triadic

#378DA5 #A5378D #8DA537

tetradic

#378DA5 #8637A5 #A54F37 #56A537

square

#378DA5 #8637A5 #A54F37 #56A537

split-complementary

#378DA5 #A53756 #A58637

monochromatic

#183F49 #286677 #378DA5 #53ADC6 #81C3D5

Accessibility & contrast

On white

3.81

#378DA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#378DA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DA5

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DA5	#FFFFFF	#000000	##000000
##378DA5	1.00	3.81	5.52	5.52
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E89A6

Deuteranopia (green-blind)

#6F7EA5

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #378da5;
/* rgb */ color: rgb(55, 141, 165);
/* oklch */ color: oklch(60.2% 0.089 219.6);

Tailwind

colors: {
  custom: {
    50: '#7baebf',
    500: '#378da5',
    950: '#000000',
  },
}

SCSS

$custom: #378da5;
$custom-light: #7baebf;
$custom-dark: #000000;

JSON

{
  "hex": "#378da5",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 165
  },
  "hsl": {
    "h": 193.091,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.60172,
    "c": 0.08858,
    "h": 219.6
  },
  "luminance": 0.22579
}

Semantic roles & 50–950 ramp

primary

#378DA5

secondary

#BF8879

accent

#6D4EDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378DA5

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

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