#366FC6#366FC6

#366FC6 is a mid, vivid blue. Relative luminance 0.162; OKLCH L 54.9% C 0.148 H 258.8°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#366FC6
RGB	rgb(54, 111, 198)
HSL	hsl(216, 57%, 49%)
HSV	hsv(216, 73%, 78%)
CMYK	cmyk(72.7%, 43.9%, 0%, 22.4%)
CIE-LAB	lab(47.27, 11.15, -50.80)
CIE-LCH	lch(47.27, 52.01, 282.38°)
OKLab	oklab(54.88% -0.0289 -0.1454)
OKLCH	oklch(54.88% 0.148 258.8)
XYZ	xyz(17.3951, 16.2285, 55.6308)
Luminance	0.1623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FC6 #C68D36

analogous

#36B7C6 #366FC6 #4536C6

triadic

#366FC6 #C6366F #6FC636

tetradic

#366FC6 #C636B7 #C68D36 #36C645

square

#366FC6 #C636B7 #C68D36 #36C645

split-complementary

#366FC6 #C64536 #B7C636

monochromatic

#1C3966 #295496 #366FC6 #6491D5 #94B3E2

Accessibility & contrast

On white

4.95

#366FC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#366FC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FC6

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FC6	#FFFFFF	#000000	##FFFFFF
##366FC6	1.00	4.95	4.25	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4477C9

Deuteranopia (green-blind)

#286AC4

Tritanopia (blue-blind)

#008391

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #366fc6;
/* rgb */ color: rgb(54, 111, 198);
/* oklch */ color: oklch(54.9% 0.148 258.8);

Tailwind

colors: {
  custom: {
    50: '#7f97d8',
    500: '#366fc6',
    950: '#000000',
  },
}

SCSS

$custom: #366fc6;
$custom-light: #7f97d8;
$custom-dark: #000000;

JSON

{
  "hex": "#366fc6",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 198
  },
  "hsl": {
    "h": 216.25,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.54878,
    "c": 0.14823,
    "h": 258.8
  },
  "luminance": 0.1623
}

Semantic roles & 50–950 ramp

primary

#366FC6

secondary

#CDB38B

accent

#A447E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366FC6

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

Preview Lab → · Contrast checker → · Palette generator →