#378DAF#378DAF

#378DAF is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.6% C 0.096 H 227.8°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#378DAF
RGB	rgb(55, 141, 175)
HSL	hsl(197, 52%, 45%)
HSV	hsv(197, 69%, 69%)
CMYK	cmyk(68.6%, 19.4%, 0%, 31.4%)
CIE-LAB	lab(55.03, -14.64, -25.39)
CIE-LCH	lch(55.03, 29.31, 240.03°)
OKLab	oklab(60.62% -0.0644 -0.0711)
OKLCH	oklch(60.62% 0.096 227.8)
XYZ	xyz(18.8352, 22.9551, 43.9872)
Luminance	0.2296 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DAF #AF5937

analogous

#37AF95 #378DAF #3751AF

triadic

#378DAF #AF378D #8DAF37

tetradic

#378DAF #9537AF #AF5937 #51AF37

square

#378DAF #9537AF #AF5937 #51AF37

split-complementary

#378DAF #AF3751 #AF9537

monochromatic

#1A4252 #286780 #378DAF #59AACB #87C2D9

Accessibility & contrast

On white

3.76

#378DAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#378DAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DAF

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DAF	#FFFFFF	#000000	##000000
##378DAF	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)

#7B8BB1

Deuteranopia (green-blind)

#6A7EAF

Tritanopia (blue-blind)

#009798

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378daf;
/* rgb */ color: rgb(55, 141, 175);
/* oklch */ color: oklch(60.6% 0.096 227.8);

Tailwind

colors: {
  custom: {
    50: '#7caec7',
    500: '#378daf',
    950: '#000000',
  },
}

SCSS

$custom: #378daf;
$custom-light: #7caec7;
$custom-dark: #000000;

JSON

{
  "hex": "#378daf",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 175
  },
  "hsl": {
    "h": 197,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.60616,
    "c": 0.09588,
    "h": 227.8
  },
  "luminance": 0.22957
}

Semantic roles & 50–950 ramp

primary

#378DAF

secondary

#C3927F

accent

#754CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378DAF

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

Preview Lab → · Contrast checker → · Palette generator →