#366EC6#366EC6

#366EC6 is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.7% C 0.149 H 259.2°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#366EC6
RGB	rgb(54, 110, 198)
HSL	hsl(217, 57%, 49%)
HSV	hsv(217, 73%, 78%)
CMYK	cmyk(72.7%, 44.4%, 0%, 22.4%)
CIE-LAB	lab(46.99, 11.78, -51.25)
CIE-LCH	lch(46.99, 52.59, 282.95°)
OKLab	oklab(54.66% -0.028 -0.1467)
OKLCH	oklch(54.66% 0.149 259.2)
XYZ	xyz(17.2866, 16.0115, 55.5946)
Luminance	0.1601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EC6 #C68E36

analogous

#36B6C6 #366EC6 #4636C6

triadic

#366EC6 #C6366E #6EC636

tetradic

#366EC6 #C636B6 #C68E36 #36C646

square

#366EC6 #C636B6 #C68E36 #36C646

split-complementary

#366EC6 #C64636 #B6C636

monochromatic

#1C3966 #295396 #366EC6 #6490D5 #94B3E2

Accessibility & contrast

On white

5.00

#366EC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#366EC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EC6

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EC6	#FFFFFF	#000000	##FFFFFF
##366EC6	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4277C9

Deuteranopia (green-blind)

#2669C4

Tritanopia (blue-blind)

#008390

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366ec6;
/* rgb */ color: rgb(54, 110, 198);
/* oklch */ color: oklch(54.7% 0.149 259.2);

Tailwind

colors: {
  custom: {
    50: '#7f97d8',
    500: '#366ec6',
    950: '#000000',
  },
}

SCSS

$custom: #366ec6;
$custom-light: #7f97d8;
$custom-dark: #000000;

JSON

{
  "hex": "#366ec6",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 198
  },
  "hsl": {
    "h": 216.667,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.54659,
    "c": 0.14938,
    "h": 259.2
  },
  "luminance": 0.16013
}

Semantic roles & 50–950 ramp

primary

#366EC6

secondary

#CDB38B

accent

#A547E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366EC6

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

Preview Lab → · Contrast checker → · Palette generator →