#378DBA#378DBA

#378DBA is a mid, moderate cyan. Relative luminance 0.234; OKLCH L 61.1% C 0.106 H 235.3°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#378DBA
RGB	rgb(55, 141, 186)
HSL	hsl(201, 54%, 47%)
HSV	hsv(201, 70%, 73%)
CMYK	cmyk(70.4%, 24.2%, 0%, 27.1%)
CIE-LAB	lab(55.49, -10.94, -30.95)
CIE-LCH	lch(55.49, 32.83, 250.54°)
OKLab	oklab(61.14% -0.0604 -0.0871)
OKLCH	oklch(61.14% 0.106 235.3)
XYZ	xyz(19.9599, 23.4049, 49.9105)
Luminance	0.2341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378DBA #BA6437

analogous

#37BAA6 #378DBA #374BBA

triadic

#378DBA #BA378D #8DBA37

tetradic

#378DBA #A637BA #BA6437 #4BBA37

square

#378DBA #A637BA #BA6437 #4BBA37

split-complementary

#378DBA #BA374B #BAA637

monochromatic

#1B455C #29698B #378DBA #5FA9D0 #8EC2DE

Accessibility & contrast

On white

3.70

#378DBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#378DBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378DBA

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378DBA	#FFFFFF	#000000	##000000
##378DBA	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778CBC

Deuteranopia (green-blind)

#657FB9

Tritanopia (blue-blind)

#00999C

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #378dba;
/* rgb */ color: rgb(55, 141, 186);
/* oklch */ color: oklch(61.1% 0.106 235.3);

Tailwind

colors: {
  custom: {
    50: '#7eaecf',
    500: '#378dba',
    950: '#000000',
  },
}

SCSS

$custom: #378dba;
$custom-light: #7eaecf;
$custom-dark: #000000;

JSON

{
  "hex": "#378dba",
  "rgb": {
    "r": 55,
    "g": 141,
    "b": 186
  },
  "hsl": {
    "h": 200.611,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.61135,
    "c": 0.10596,
    "h": 235.3
  },
  "luminance": 0.23407
}

Semantic roles & 50–950 ramp

primary

#378DBA

secondary

#C89C85

accent

#7D4ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378DBA

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

Preview Lab → · Contrast checker → · Palette generator →