#378DB7#378DB7

#378DB7 is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 61.0% C 0.103 H 233.4°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#378DB7
RGB	rgb(55, 141, 183)
HSL	hsl(200, 54%, 47%)
HSV	hsv(200, 70%, 72%)
CMYK	cmyk(69.9%, 23%, 0%, 28.2%)
CIE-LAB	lab(55.36, -11.96, -29.45)
CIE-LCH	lch(55.36, 31.78, 247.90°)
OKLab	oklab(60.99% -0.0614 -0.0827)
OKLCH	oklch(60.99% 0.103 233.4)
XYZ	xyz(19.6443, 23.2787, 48.2485)
Luminance	0.2328 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DB7 #B76137

analogous

#37B7A1 #378DB7 #374DB7

triadic

#378DB7 #B7378D #8DB737

tetradic

#378DB7 #A137B7 #B76137 #4DB737

square

#378DB7 #A137B7 #B76137 #4DB737

split-complementary

#378DB7 #B7374D #B7A137

monochromatic

#1B4459 #296988 #378DB7 #5DA9CE #8CC2DC

Accessibility & contrast

On white

3.71

#378DB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#378DB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DB7

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DB7	#FFFFFF	#000000	##000000
##378DB7	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)

#788CB9

Deuteranopia (green-blind)

#677FB6

Tritanopia (blue-blind)

#00989B

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #378db7;
/* rgb */ color: rgb(55, 141, 183);
/* oklch */ color: oklch(61.0% 0.103 233.4);

Tailwind

colors: {
  custom: {
    50: '#7daecc',
    500: '#378db7',
    950: '#000000',
  },
}

SCSS

$custom: #378db7;
$custom-light: #7daecc;
$custom-dark: #000000;

JSON

{
  "hex": "#378db7",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 183
  },
  "hsl": {
    "h": 199.688,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.6099,
    "c": 0.10304,
    "h": 233.4
  },
  "luminance": 0.23281
}

Semantic roles & 50–950 ramp

primary

#378DB7

secondary

#C79983

accent

#7B4BDD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378DB7

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

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