#378FB0#378FB0

#378FB0 is a mid, moderate cyan. Relative luminance 0.236; OKLCH L 61.1% C 0.096 H 226.6°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#378FB0
RGB	rgb(55, 143, 176)
HSL	hsl(196, 52%, 45%)
HSV	hsv(196, 69%, 69%)
CMYK	cmyk(68.8%, 18.7%, 0%, 31%)
CIE-LAB	lab(55.67, -15.41, -24.96)
CIE-LCH	lch(55.67, 29.33, 238.32°)
OKLab	oklab(61.15% -0.0661 -0.0698)
OKLCH	oklch(61.15% 0.096 226.6)
XYZ	xyz(19.2313, 23.5896, 44.6056)
Luminance	0.2359 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378FB0 #B05837

analogous

#37B095 #378FB0 #3752B0

triadic

#378FB0 #B0378F #8FB037

tetradic

#378FB0 #9537B0 #B05837 #52B037

square

#378FB0 #9537B0 #B05837 #52B037

split-complementary

#378FB0 #B03752 #B09537

monochromatic

#1A4353 #286981 #378FB0 #59ACCB #88C3DA

Accessibility & contrast

On white

3.67

#378FB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#378FB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378FB0

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378FB0	#FFFFFF	#000000	##000000
##378FB0	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8CB2

Deuteranopia (green-blind)

#6D80B0

Tritanopia (blue-blind)

#00999A

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #378fb0;
/* rgb */ color: rgb(55, 143, 176);
/* oklch */ color: oklch(61.1% 0.096 226.6);

Tailwind

colors: {
  custom: {
    50: '#7dafc7',
    500: '#378fb0',
    950: '#000000',
  },
}

SCSS

$custom: #378fb0;
$custom-light: #7dafc7;
$custom-dark: #000000;

JSON

{
  "hex": "#378fb0",
  "rgb": {
    "r": 55,
    "g": 143,
    "b": 176
  },
  "hsl": {
    "h": 196.364,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.61147,
    "c": 0.09614,
    "h": 226.6
  },
  "luminance": 0.23592
}

Semantic roles & 50–950 ramp

primary

#378FB0

secondary

#C4927F

accent

#734CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378FB0

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

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