#378DB8#378DB8

#378DB8 is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 61.0% C 0.104 H 234.0°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#378DB8
RGB	rgb(55, 141, 184)
HSL	hsl(200, 54%, 47%)
HSV	hsv(200, 70%, 72%)
CMYK	cmyk(70.1%, 23.4%, 0%, 27.8%)
CIE-LAB	lab(55.40, -11.62, -29.95)
CIE-LCH	lch(55.40, 32.12, 248.80°)
OKLab	oklab(61.04% -0.0611 -0.0842)
OKLCH	oklch(61.04% 0.104 234)
XYZ	xyz(19.7487, 23.3205, 48.7986)
Luminance	0.2332 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DB8 #B86237

analogous

#37B8A3 #378DB8 #374DB8

triadic

#378DB8 #B8378D #8DB837

tetradic

#378DB8 #A337B8 #B86237 #4DB837

square

#378DB8 #A337B8 #B86237 #4DB837

split-complementary

#378DB8 #B8374D #B8A337

monochromatic

#1B455A #296989 #378DB8 #5DA9CF #8DC2DD

Accessibility & contrast

On white

3.71

#378DB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#378DB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DB8

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DB8	#FFFFFF	#000000	##000000
##378DB8	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788CBA

Deuteranopia (green-blind)

#667FB7

Tritanopia (blue-blind)

#00989B

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #378db8;
/* rgb */ color: rgb(55, 141, 184);
/* oklch */ color: oklch(61.0% 0.104 234.0);

Tailwind

colors: {
  custom: {
    50: '#7eaecd',
    500: '#378db8',
    950: '#000000',
  },
}

SCSS

$custom: #378db8;
$custom-light: #7eaecd;
$custom-dark: #000000;

JSON

{
  "hex": "#378db8",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 184
  },
  "hsl": {
    "h": 200,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.61038,
    "c": 0.104,
    "h": 234
  },
  "luminance": 0.23323
}

Semantic roles & 50–950 ramp

primary

#378DB8

secondary

#C79A84

accent

#7B4ADD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378DB8

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

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