#366EC5#366EC5

#366EC5 is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.6% C 0.148 H 259.0°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#366EC5
RGB	rgb(54, 110, 197)
HSL	hsl(217, 57%, 49%)
HSV	hsv(217, 73%, 77%)
CMYK	cmyk(72.6%, 44.2%, 0%, 22.7%)
CIE-LAB	lab(46.93, 11.41, -50.77)
CIE-LCH	lch(46.93, 52.04, 282.67°)
OKLab	oklab(54.59% -0.0282 -0.1453)
OKLCH	oklch(54.59% 0.148 259)
XYZ	xyz(17.1716, 15.9655, 54.9892)
Luminance	0.1597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EC5 #C58D36

analogous

#36B6C5 #366EC5 #4536C5

triadic

#366EC5 #C5366E #6EC536

tetradic

#366EC5 #C536B6 #C58D36 #36C545

square

#366EC5 #C536B6 #C58D36 #36C545

split-complementary

#366EC5 #C54536 #B6C536

monochromatic

#1C3865 #295395 #366EC5 #6490D4 #94B2E2

Accessibility & contrast

On white

5.01

#366EC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#366EC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EC5

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EC5	#FFFFFF	#000000	##FFFFFF
##366EC5	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4376C8

Deuteranopia (green-blind)

#2769C3

Tritanopia (blue-blind)

#008290

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366ec5;
/* rgb */ color: rgb(54, 110, 197);
/* oklch */ color: oklch(54.6% 0.148 259.0);

Tailwind

colors: {
  custom: {
    50: '#7f97d7',
    500: '#366ec5',
    950: '#000000',
  },
}

SCSS

$custom: #366ec5;
$custom-light: #7f97d7;
$custom-dark: #000000;

JSON

{
  "hex": "#366ec5",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 197
  },
  "hsl": {
    "h": 216.503,
    "s": 56.972,
    "l": 49.216
  },
  "oklch": {
    "l": 0.54593,
    "c": 0.14804,
    "h": 259
  },
  "luminance": 0.15967
}

Semantic roles & 50–950 ramp

primary

#366EC5

secondary

#CDB38A

accent

#A448E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366EC5

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

Preview Lab → · Contrast checker → · Palette generator →