#378FAD#378FAD

#378FAD is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 61.0% C 0.094 H 224.2°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#378FAD
RGB	rgb(55, 143, 173)
HSL	hsl(195, 52%, 45%)
HSV	hsv(195, 68%, 68%)
CMYK	cmyk(68.2%, 17.3%, 0%, 32.2%)
CIE-LAB	lab(55.56, -16.39, -23.43)
CIE-LCH	lch(55.56, 28.60, 235.02°)
OKLab	oklab(61.01% -0.0672 -0.0655)
OKLCH	oklch(61.01% 0.094 224.2)
XYZ	xyz(18.9378, 23.4722, 43.0596)
Luminance	0.2347 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378FAD #AD5537

analogous

#37AD90 #378FAD #3754AD

triadic

#378FAD #AD378F #8FAD37

tetradic

#378FAD #9037AD #AD5537 #54AD37

square

#378FAD #9037AD #AD5537 #54AD37

split-complementary

#378FAD #AD3754 #AD9037

monochromatic

#194250 #28697F #378FAD #57ADCA #86C4D8

Accessibility & contrast

On white

3.69

#378FAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#378FAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378FAD

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378FAD	#FFFFFF	#000000	##000000
##378FAD	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8CAF

Deuteranopia (green-blind)

#6E80AD

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #378fad;
/* rgb */ color: rgb(55, 143, 173);
/* oklch */ color: oklch(61.0% 0.094 224.2);

Tailwind

colors: {
  custom: {
    50: '#7cb0c5',
    500: '#378fad',
    950: '#000000',
  },
}

SCSS

$custom: #378fad;
$custom-light: #7cb0c5;
$custom-dark: #000000;

JSON

{
  "hex": "#378fad",
  "rgb": {
    "r": 55,
    "g": 143,
    "b": 173
  },
  "hsl": {
    "h": 195.254,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.61013,
    "c": 0.09383,
    "h": 224.2
  },
  "luminance": 0.23474
}

Semantic roles & 50–950 ramp

primary

#378FAD

secondary

#C28F7D

accent

#714DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378FAD

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

Preview Lab → · Contrast checker → · Palette generator →