#378AAD#378AAD

#378AAD is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.8% C 0.095 H 229.4°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#378AAD
RGB	rgb(55, 138, 173)
HSL	hsl(198, 52%, 45%)
HSV	hsv(198, 68%, 68%)
CMYK	cmyk(68.2%, 20.2%, 0%, 32.2%)
CIE-LAB	lab(54.03, -13.65, -25.78)
CIE-LCH	lch(54.03, 29.17, 242.10°)
OKLab	oklab(59.8% -0.062 -0.0722)
OKLCH	oklch(59.8% 0.095 229.4)
XYZ	xyz(18.2038, 22.0043, 42.8149)
Luminance	0.2201 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AAD #AD5A37

analogous

#37AD95 #378AAD #374FAD

triadic

#378AAD #AD378A #8AAD37

tetradic

#378AAD #9537AD #AD5A37 #4FAD37

square

#378AAD #9537AD #AD5A37 #4FAD37

split-complementary

#378AAD #AD374F #AD9537

monochromatic

#194050 #28657F #378AAD #57A8CA #86C0D8

Accessibility & contrast

On white

3.89

#378AAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#378AAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AAD

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AAD	#FFFFFF	#000000	##000000
##378AAD	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7888AF

Deuteranopia (green-blind)

#687CAD

Tritanopia (blue-blind)

#009496

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #378aad;
/* rgb */ color: rgb(55, 138, 173);
/* oklch */ color: oklch(59.8% 0.095 229.4);

Tailwind

colors: {
  custom: {
    50: '#7cacc5',
    500: '#378aad',
    950: '#000000',
  },
}

SCSS

$custom: #378aad;
$custom-light: #7cacc5;
$custom-dark: #000000;

JSON

{
  "hex": "#378aad",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 173
  },
  "hsl": {
    "h": 197.797,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.59795,
    "c": 0.09515,
    "h": 229.4
  },
  "luminance": 0.22006
}

Semantic roles & 50–950 ramp

primary

#378AAD

secondary

#C2927D

accent

#774DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #378AAD

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

Preview Lab → · Contrast checker → · Palette generator →