#378AE5#378AE5

#378AE5 is a light, vivid cyan. Relative luminance 0.246; OKLCH L 62.8% C 0.159 H 253.4°. Best body text is #000000 at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#378AE5
RGB	rgb(55, 138, 229)
HSL	hsl(211, 77%, 56%)
HSV	hsv(211, 76%, 90%)
CMYK	cmyk(76%, 39.7%, 0%, 10.2%)
CIE-LAB	lab(56.73, 6.03, -53.23)
CIE-LCH	lch(56.73, 53.57, 276.47°)
OKLab	oklab(62.8% -0.0453 -0.152)
OKLCH	oklch(62.8% 0.159 253.4)
XYZ	xyz(24.8016, 24.6434, 77.5631)
Luminance	0.2465 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378AE5 #E59237

analogous

#37E1E5 #378AE5 #3B37E5

triadic

#378AE5 #E5378A #8AE537

tetradic

#378AE5 #E537E1 #E59237 #37E53B

square

#378AE5 #E537E1 #E59237 #37E53B

split-complementary

#378AE5 #E53B37 #E1E537

monochromatic

#134E8F #1A6BC5 #378AE5 #6DAAEC #A3C9F3

Accessibility & contrast

On white

3.54

#378AE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.93

#378AE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378AE5

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378AE5	#FFFFFF	#000000	##000000
##378AE5	1.00	3.54	5.93	5.93
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.93	21.00	1.00	1.00
##000000	5.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E91E9

Deuteranopia (green-blind)

#4281E3

Tritanopia (blue-blind)

#00A0AC

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #378ae5;
/* rgb */ color: rgb(55, 138, 229);
/* oklch */ color: oklch(62.8% 0.159 253.4);

Tailwind

colors: {
  custom: {
    50: '#85abee',
    500: '#378ae5',
    950: '#000000',
  },
}

SCSS

$custom: #378ae5;
$custom-light: #85abee;
$custom-dark: #000000;

JSON

{
  "hex": "#378ae5",
  "rgb": {
    "r": 55,
    "g": 138,
    "b": 229
  },
  "hsl": {
    "h": 211.379,
    "s": 76.991,
    "l": 55.686
  },
  "oklch": {
    "l": 0.62803,
    "c": 0.15865,
    "h": 253.4
  },
  "luminance": 0.24646
}

Semantic roles & 50–950 ramp

primary

#378AE5

secondary

#E0BE98

accent

#9834F4

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #378AE5

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

Preview Lab → · Contrast checker → · Palette generator →