#378AB6#378AB6

#378AB6 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.2% C 0.104 H 235.5°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#378AB6
RGB	rgb(55, 138, 182)
HSL	hsl(201, 54%, 46%)
HSV	hsv(201, 70%, 71%)
CMYK	cmyk(69.8%, 24.2%, 0%, 28.6%)
CIE-LAB	lab(54.41, -10.61, -30.35)
CIE-LCH	lch(54.41, 32.15, 250.73°)
OKLab	oklab(60.22% -0.0587 -0.0853)
OKLCH	oklch(60.22% 0.104 235.5)
XYZ	xyz(19.1042, 22.3645, 47.5568)
Luminance	0.2237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AB6 #B66337

analogous

#37B6A3 #378AB6 #374BB6

triadic

#378AB6 #B6378A #8AB637

tetradic

#378AB6 #A337B6 #B66337 #4BB637

square

#378AB6 #A337B6 #B66337 #4BB637

split-complementary

#378AB6 #B6374B #B6A337

monochromatic

#1B4358 #296687 #378AB6 #5CA7CE #8BC0DC

Accessibility & contrast

On white

3.84

#378AB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#378AB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AB6

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AB6	#FFFFFF	#000000	##000000
##378AB6	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7589B8

Deuteranopia (green-blind)

#647DB5

Tritanopia (blue-blind)

#009599

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #378ab6;
/* rgb */ color: rgb(55, 138, 182);
/* oklch */ color: oklch(60.2% 0.104 235.5);

Tailwind

colors: {
  custom: {
    50: '#7daccc',
    500: '#378ab6',
    950: '#000000',
  },
}

SCSS

$custom: #378ab6;
$custom-light: #7daccc;
$custom-dark: #000000;

JSON

{
  "hex": "#378ab6",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 182
  },
  "hsl": {
    "h": 200.787,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.60223,
    "c": 0.10358,
    "h": 235.5
  },
  "luminance": 0.22367
}

Semantic roles & 50–950 ramp

primary

#378AB6

secondary

#C69A82

accent

#7D4BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378AB6

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

Preview Lab → · Contrast checker → · Palette generator →