#378BB7#378BB7

#378BB7 is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.5% C 0.104 H 235.2°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#378BB7
RGB	rgb(55, 139, 183)
HSL	hsl(201, 54%, 47%)
HSV	hsv(201, 70%, 72%)
CMYK	cmyk(69.9%, 24%, 0%, 28.2%)
CIE-LAB	lab(54.76, -10.83, -30.38)
CIE-LCH	lch(54.76, 32.26, 250.37°)
OKLab	oklab(60.51% -0.0594 -0.0854)
OKLCH	oklch(60.51% 0.104 235.2)
XYZ	xyz(19.3520, 22.6942, 48.1511)
Luminance	0.2270 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378BB7 #B76337

analogous

#37B7A3 #378BB7 #374BB7

triadic

#378BB7 #B7378B #8BB737

tetradic

#378BB7 #A337B7 #B76337 #4BB737

square

#378BB7 #A337B7 #B76337 #4BB737

split-complementary

#378BB7 #B7374B #B7A337

monochromatic

#1B4459 #296788 #378BB7 #5DA7CE #8CC1DC

Accessibility & contrast

On white

3.79

#378BB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#378BB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BB7

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378BB7	#FFFFFF	#000000	##000000
##378BB7	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#768AB9

Deuteranopia (green-blind)

#647DB6

Tritanopia (blue-blind)

#00969A

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #378bb7;
/* rgb */ color: rgb(55, 139, 183);
/* oklch */ color: oklch(60.5% 0.104 235.2);

Tailwind

colors: {
  custom: {
    50: '#7daccc',
    500: '#378bb7',
    950: '#000000',
  },
}

SCSS

$custom: #378bb7;
$custom-light: #7daccc;
$custom-dark: #000000;

JSON

{
  "hex": "#378bb7",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 183
  },
  "hsl": {
    "h": 200.625,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.60511,
    "c": 0.10405,
    "h": 235.2
  },
  "luminance": 0.22696
}

Semantic roles & 50–950 ramp

primary

#378BB7

secondary

#C79A83

accent

#7D4BDD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378BB7

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

Preview Lab → · Contrast checker → · Palette generator →