#366AEE#366AEE

#366AEE is a mid, highly saturated blue. Relative luminance 0.173; OKLCH L 56.7% C 0.207 H 264.4°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#366AEE
RGB	rgb(54, 106, 238)
HSL	hsl(223, 84%, 57%)
HSV	hsv(223, 77%, 93%)
CMYK	cmyk(77.3%, 55.5%, 0%, 6.7%)
CIE-LAB	lab(48.59, 29.07, -71.37)
CIE-LCH	lch(48.59, 77.06, 292.16°)
OKLab	oklab(56.73% -0.0202 -0.206)
OKLCH	oklch(56.73% 0.207 264.4)
XYZ	xyz(22.1025, 17.2628, 83.0395)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AEE #EEBA36

analogous

#36C6EE #366AEE #5E36EE

triadic

#366AEE #EE366A #6AEE36

tetradic

#366AEE #EE36C6 #EEBA36 #36EE5E

square

#366AEE #EE36C6 #EEBA36 #36EE5E

split-complementary

#366AEE #EE5E36 #C6EE36

monochromatic

#0D369C #1249D5 #366AEE #6E94F3 #A7BEF8

Accessibility & contrast

On white

4.72

#366AEE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#366AEE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AEE

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AEE	#FFFFFF	#000000	##FFFFFF
##366AEE	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007CF3

Deuteranopia (green-blind)

#006BEB

Tritanopia (blue-blind)

#008BA2

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #366aee;
/* rgb */ color: rgb(54, 106, 238);
/* oklch */ color: oklch(56.7% 0.207 264.4);

Tailwind

colors: {
  custom: {
    50: '#8894f4',
    500: '#366aee',
    950: '#000000',
  },
}

SCSS

$custom: #366aee;
$custom-light: #8894f4;
$custom-dark: #000000;

JSON

{
  "hex": "#366aee",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 238
  },
  "hsl": {
    "h": 223.043,
    "s": 84.404,
    "l": 57.255
  },
  "oklch": {
    "l": 0.56732,
    "c": 0.20696,
    "h": 264.4
  },
  "luminance": 0.17265
}

Semantic roles & 50–950 ramp

primary

#366AEE

secondary

#E5D09B

accent

#C12DFB

background

#F9F9FF

surface

#F2F1FE

border

#CCCBD6

text

#0D0D17

muted

#7E7E85

Preview Lab

Preview with #366AEE

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

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