#366DCC#366DCC

#366DCC is a mid, vivid blue. Relative luminance 0.161; OKLCH L 54.8% C 0.159 H 260.5°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#366DCC
RGB	rgb(54, 109, 204)
HSL	hsl(218, 60%, 51%)
HSV	hsv(218, 74%, 80%)
CMYK	cmyk(73.5%, 46.6%, 0%, 20%)
CIE-LAB	lab(47.08, 14.63, -54.55)
CIE-LCH	lch(47.08, 56.48, 285.01°)
OKLab	oklab(54.85% -0.0261 -0.1565)
OKLCH	oklch(54.85% 0.159 260.5)
XYZ	xyz(17.8851, 16.0792, 59.2760)
Luminance	0.1608 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DCC #CC9536

analogous

#36B8CC #366DCC #4A36CC

triadic

#366DCC #CC366D #6DCC36

tetradic

#366DCC #CC36B8 #CC9536 #36CC4A

square

#366DCC #CC36B8 #CC9536 #36CC4A

split-complementary

#366DCC #CC4A36 #B8CC36

monochromatic

#1B396C #28539D #366DCC #6790D8 #98B4E5

Accessibility & contrast

On white

4.98

#366DCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#366DCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DCC

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DCC	#FFFFFF	#000000	##FFFFFF
##366DCC	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A77D0

Deuteranopia (green-blind)

#1569CA

Tritanopia (blue-blind)

#008392

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #366dcc;
/* rgb */ color: rgb(54, 109, 204);
/* oklch */ color: oklch(54.8% 0.159 260.5);

Tailwind

colors: {
  custom: {
    50: '#8096dc',
    500: '#366dcc',
    950: '#000000',
  },
}

SCSS

$custom: #366dcc;
$custom-light: #8096dc;
$custom-dark: #000000;

JSON

{
  "hex": "#366dcc",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 204
  },
  "hsl": {
    "h": 218,
    "s": 59.524,
    "l": 50.588
  },
  "oklch": {
    "l": 0.54847,
    "c": 0.15863,
    "h": 260.5
  },
  "luminance": 0.16081
}

Semantic roles & 50–950 ramp

primary

#366DCC

secondary

#D0B88E

accent

#A945E3

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366DCC

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

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