#378AA6#378AA6

#378AA6 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.5% C 0.090 H 223.8°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#378AA6
RGB	rgb(55, 138, 166)
HSL	hsl(195, 50%, 43%)
HSV	hsv(195, 67%, 65%)
CMYK	cmyk(66.9%, 16.9%, 0%, 34.9%)
CIE-LAB	lab(53.75, -15.96, -22.19)
CIE-LCH	lch(53.75, 27.33, 234.27°)
OKLab	oklab(59.48% -0.0646 -0.0619)
OKLCH	oklch(59.48% 0.09 223.8)
XYZ	xyz(17.5442, 21.7405, 39.3407)
Luminance	0.2174 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AA6 #A65337

analogous

#37A68A #378AA6 #3752A6

triadic

#378AA6 #A6378A #8AA637

tetradic

#378AA6 #8A37A6 #A65337 #52A637

square

#378AA6 #8A37A6 #A65337 #52A637

split-complementary

#378AA6 #A63752 #A68A37

monochromatic

#193E4A #286478 #378AA6 #54A9C6 #82C0D6

Accessibility & contrast

On white

3.93

#378AA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#378AA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AA6

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AA6	#FFFFFF	#000000	##000000
##378AA6	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A87A7

Deuteranopia (green-blind)

#6B7BA6

Tritanopia (blue-blind)

#009393

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #378aa6;
/* rgb */ color: rgb(55, 138, 166);
/* oklch */ color: oklch(59.5% 0.090 223.8);

Tailwind

colors: {
  custom: {
    50: '#7bacc0',
    500: '#378aa6',
    950: '#000000',
  },
}

SCSS

$custom: #378aa6;
$custom-light: #7bacc0;
$custom-dark: #000000;

JSON

{
  "hex": "#378aa6",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 166
  },
  "hsl": {
    "h": 195.135,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.59477,
    "c": 0.08953,
    "h": 223.8
  },
  "luminance": 0.21742
}

Semantic roles & 50–950 ramp

primary

#378AA6

secondary

#BF8B7A

accent

#714EDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378AA6

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

Preview Lab → · Contrast checker → · Palette generator →