#378FA8#378FA8

#378FA8 is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 60.8% C 0.090 H 220.1°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#378FA8
RGB	rgb(55, 143, 168)
HSL	hsl(193, 51%, 44%)
HSV	hsv(193, 67%, 66%)
CMYK	cmyk(67.3%, 14.9%, 0%, 34.1%)
CIE-LAB	lab(55.36, -18.02, -20.87)
CIE-LCH	lch(55.36, 27.57, 229.18°)
OKLab	oklab(60.79% -0.0692 -0.0582)
OKLCH	oklch(60.79% 0.09 220.1)
XYZ	xyz(18.4630, 23.2823, 40.5591)
Luminance	0.2328 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378FA8 #A85037

analogous

#37A888 #378FA8 #3756A8

triadic

#378FA8 #A8378F #8FA837

tetradic

#378FA8 #8837A8 #A85037 #56A837

square

#378FA8 #8837A8 #A85037 #56A837

split-complementary

#378FA8 #A83756 #A88837

monochromatic

#19414C #28687A #378FA8 #55AEC7 #83C4D6

Accessibility & contrast

On white

3.71

#378FA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#378FA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378FA8

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378FA8	#FFFFFF	#000000	##000000
##378FA8	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808BA9

Deuteranopia (green-blind)

#707FA8

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #378fa8;
/* rgb */ color: rgb(55, 143, 168);
/* oklch */ color: oklch(60.8% 0.090 220.1);

Tailwind

colors: {
  custom: {
    50: '#7bb0c2',
    500: '#378fa8',
    950: '#000000',
  },
}

SCSS

$custom: #378fa8;
$custom-light: #7bb0c2;
$custom-dark: #000000;

JSON

{
  "hex": "#378fa8",
  "rgb": {
    "r": 55,
    "g": 143,
    "b": 168
  },
  "hsl": {
    "h": 193.274,
    "s": 50.673,
    "l": 43.725
  },
  "oklch": {
    "l": 0.60793,
    "c": 0.09039,
    "h": 220.1
  },
  "luminance": 0.23284
}

Semantic roles & 50–950 ramp

primary

#378FA8

secondary

#C08A7B

accent

#6D4EDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378FA8

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

Preview Lab → · Contrast checker → · Palette generator →