#378AC3#378AC3

#378AC3 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.9% C 0.117 H 242.4°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#378AC3
RGB	rgb(55, 138, 195)
HSL	hsl(204, 56%, 49%)
HSV	hsv(204, 72%, 76%)
CMYK	cmyk(71.8%, 29.2%, 0%, 23.5%)
CIE-LAB	lab(55.00, -6.12, -36.84)
CIE-LCH	lch(55.00, 37.34, 260.57°)
OKLab	oklab(60.88% -0.0544 -0.1041)
OKLCH	oklch(60.88% 0.117 242.4)
XYZ	xyz(20.5106, 22.9270, 54.9636)
Luminance	0.2293 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AC3 #C37037

analogous

#37C3B6 #378AC3 #3744C3

triadic

#378AC3 #C3378A #8AC337

tetradic

#378AC3 #B637C3 #C37037 #44C337

square

#378AC3 #B637C3 #C37037 #44C337

split-complementary

#378AC3 #C33744 #C3B637

monochromatic

#1C4664 #2A6893 #378AC3 #64A6D3 #94C1E1

Accessibility & contrast

On white

3.76

#378AC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#378AC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AC3

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AC3	#FFFFFF	#000000	##000000
##378AC3	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#708BC6

Deuteranopia (green-blind)

#5D7EC2

Tritanopia (blue-blind)

#00989E

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378ac3;
/* rgb */ color: rgb(55, 138, 195);
/* oklch */ color: oklch(60.9% 0.117 242.4);

Tailwind

colors: {
  custom: {
    50: '#7facd5',
    500: '#378ac3',
    950: '#000000',
  },
}

SCSS

$custom: #378ac3;
$custom-light: #7facd5;
$custom-dark: #000000;

JSON

{
  "hex": "#378ac3",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 195
  },
  "hsl": {
    "h": 204.429,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.6088,
    "c": 0.11749,
    "h": 242.4
  },
  "luminance": 0.22929
}

Semantic roles & 50–950 ramp

primary

#378AC3

secondary

#CCA58A

accent

#8649DF

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B1014

muted

#7C7F83

Preview Lab

Preview with #378AC3

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

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