#378DBC#378DBC

#378DBC is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 61.2% C 0.108 H 236.4°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#378DBC
RGB	rgb(55, 141, 188)
HSL	hsl(201, 55%, 48%)
HSV	hsv(201, 71%, 74%)
CMYK	cmyk(70.7%, 25%, 0%, 26.3%)
CIE-LAB	lab(55.57, -10.25, -31.96)
CIE-LCH	lch(55.57, 33.56, 252.21°)
OKLab	oklab(61.23% -0.0597 -0.09)
OKLCH	oklch(61.23% 0.108 236.4)
XYZ	xyz(20.1740, 23.4906, 51.0381)
Luminance	0.2349 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DBC #BC6637

analogous

#37BCA9 #378DBC #374ABC

triadic

#378DBC #BC378D #8DBC37

tetradic

#378DBC #A937BC #BC6637 #4ABC37

square

#378DBC #A937BC #BC6637 #4ABC37

split-complementary

#378DBC #BC374A #BCA937

monochromatic

#1B465D #29698D #378DBC #60A9D0 #8FC2DE

Accessibility & contrast

On white

3.69

#378DBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#378DBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DBC

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DBC	#FFFFFF	#000000	##000000
##378DBC	1.00	3.69	5.70	5.70
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778CBE

Deuteranopia (green-blind)

#647FBB

Tritanopia (blue-blind)

#00999D

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #378dbc;
/* rgb */ color: rgb(55, 141, 188);
/* oklch */ color: oklch(61.2% 0.108 236.4);

Tailwind

colors: {
  custom: {
    50: '#7eaed0',
    500: '#378dbc',
    950: '#000000',
  },
}

SCSS

$custom: #378dbc;
$custom-light: #7eaed0;
$custom-dark: #000000;

JSON

{
  "hex": "#378dbc",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 188
  },
  "hsl": {
    "h": 201.203,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.61233,
    "c": 0.10796,
    "h": 236.4
  },
  "luminance": 0.23493
}

Semantic roles & 50–950 ramp

primary

#378DBC

secondary

#C99E86

accent

#7E4ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #378DBC

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

Preview Lab → · Contrast checker → · Palette generator →