#378EAF#378EAF

#378EAF is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 60.9% C 0.096 H 226.8°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#378EAF
RGB	rgb(55, 142, 175)
HSL	hsl(197, 52%, 45%)
HSV	hsv(197, 69%, 69%)
CMYK	cmyk(68.6%, 18.9%, 0%, 31.4%)
CIE-LAB	lab(55.33, -15.19, -24.92)
CIE-LCH	lch(55.33, 29.19, 238.64°)
OKLab	oklab(60.86% -0.0654 -0.0697)
OKLCH	oklch(60.86% 0.096 226.8)
XYZ	xyz(18.9833, 23.2513, 44.0366)
Luminance	0.2325 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378EAF #AF5837

analogous

#37AF94 #378EAF #3752AF

triadic

#378EAF #AF378E #8EAF37

tetradic

#378EAF #9437AF #AF5837 #52AF37

square

#378EAF #9437AF #AF5837 #52AF37

split-complementary

#378EAF #AF3752 #AF9437

monochromatic

#1A4252 #286880 #378EAF #59ABCB #87C3D9

Accessibility & contrast

On white

3.72

#378EAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#378EAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378EAF

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378EAF	#FFFFFF	#000000	##000000
##378EAF	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8BB1

Deuteranopia (green-blind)

#6C7FAF

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #378eaf;
/* rgb */ color: rgb(55, 142, 175);
/* oklch */ color: oklch(60.9% 0.096 226.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#378eaf",
  "rgb": {
    "r": 55,
    "g": 142,
    "b": 175
  },
  "hsl": {
    "h": 196.5,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.60859,
    "c": 0.09561,
    "h": 226.8
  },
  "luminance": 0.23253
}

Semantic roles & 50–950 ramp

primary

#378EAF

secondary

#C3917F

accent

#744CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378EAF

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

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