#378DAB#378DAB

#378DAB is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.4% C 0.093 H 224.7°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#378DAB
RGB	rgb(55, 141, 171)
HSL	hsl(196, 51%, 44%)
HSV	hsv(196, 68%, 67%)
CMYK	cmyk(67.8%, 17.5%, 0%, 32.9%)
CIE-LAB	lab(54.87, -15.96, -23.35)
CIE-LCH	lch(54.87, 28.28, 235.64°)
OKLab	oklab(60.44% -0.0659 -0.0652)
OKLCH	oklch(60.44% 0.093 224.7)
XYZ	xyz(18.4481, 22.8002, 41.9488)
Luminance	0.2280 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DAB #AB5537

analogous

#37AB8F #378DAB #3753AB

triadic

#378DAB #AB378D #8DAB37

tetradic

#378DAB #8F37AB #AB5537 #53AB37

square

#378DAB #8F37AB #AB5537 #53AB37

split-complementary

#378DAB #AB3753 #AB8F37

monochromatic

#19414E #28677D #378DAB #56ABC9 #85C2D8

Accessibility & contrast

On white

3.78

#378DAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#378DAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DAB

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DAB	#FFFFFF	#000000	##000000
##378DAB	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8AAD

Deuteranopia (green-blind)

#6C7EAB

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #378dab;
/* rgb */ color: rgb(55, 141, 171);
/* oklch */ color: oklch(60.4% 0.093 224.7);

Tailwind

colors: {
  custom: {
    50: '#7caec4',
    500: '#378dab',
    950: '#000000',
  },
}

SCSS

$custom: #378dab;
$custom-light: #7caec4;
$custom-dark: #000000;

JSON

{
  "hex": "#378dab",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 171
  },
  "hsl": {
    "h": 195.517,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.60435,
    "c": 0.09272,
    "h": 224.7
  },
  "luminance": 0.22802
}

Semantic roles & 50–950 ramp

primary

#378DAB

secondary

#C18E7C

accent

#724DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #378DAB

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

Preview Lab → · Contrast checker → · Palette generator →