#378FAF#378FAF

#378FAF is a mid, moderate cyan. Relative luminance 0.236; OKLCH L 61.1% C 0.095 H 225.8°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#378FAF
RGB	rgb(55, 143, 175)
HSL	hsl(196, 52%, 45%)
HSV	hsv(196, 69%, 69%)
CMYK	cmyk(68.6%, 18.3%, 0%, 31.4%)
CIE-LAB	lab(55.63, -15.74, -24.45)
CIE-LCH	lch(55.63, 29.08, 237.24°)
OKLab	oklab(61.1% -0.0664 -0.0684)
OKLCH	oklch(61.1% 0.095 225.8)
XYZ	xyz(19.1328, 23.5502, 44.0864)
Luminance	0.2355 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378FAF #AF5737

analogous

#37AF93 #378FAF #3753AF

triadic

#378FAF #AF378F #8FAF37

tetradic

#378FAF #9337AF #AF5737 #53AF37

square

#378FAF #9337AF #AF5737 #53AF37

split-complementary

#378FAF #AF3753 #AF9337

monochromatic

#1A4352 #286980 #378FAF #59ACCB #87C3D9

Accessibility & contrast

On white

3.68

#378FAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#378FAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378FAF

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378FAF	#FFFFFF	#000000	##000000
##378FAF	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8CB1

Deuteranopia (green-blind)

#6D80AF

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #378faf;
/* rgb */ color: rgb(55, 143, 175);
/* oklch */ color: oklch(61.1% 0.095 225.8);

Tailwind

colors: {
  custom: {
    50: '#7cafc7',
    500: '#378faf',
    950: '#000000',
  },
}

SCSS

$custom: #378faf;
$custom-light: #7cafc7;
$custom-dark: #000000;

JSON

{
  "hex": "#378faf",
  "rgb": {
    "r": 55,
    "g": 143,
    "b": 175
  },
  "hsl": {
    "h": 196,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.61102,
    "c": 0.09535,
    "h": 225.8
  },
  "luminance": 0.23552
}

Semantic roles & 50–950 ramp

primary

#378FAF

secondary

#C3917F

accent

#724CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378FAF

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

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