#366FC2#366FC2

#366FC2 is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.6% C 0.143 H 258.0°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#366FC2
RGB	rgb(54, 111, 194)
HSL	hsl(216, 56%, 49%)
HSV	hsv(216, 72%, 76%)
CMYK	cmyk(72.2%, 42.8%, 0%, 23.9%)
CIE-LAB	lab(47.04, 9.68, -48.88)
CIE-LCH	lch(47.04, 49.82, 281.20°)
OKLab	oklab(54.62% -0.0297 -0.1397)
OKLCH	oklch(54.62% 0.143 258)
XYZ	xyz(16.9398, 16.0464, 53.2330)
Luminance	0.1605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FC2 #C28936

analogous

#36B5C2 #366FC2 #4336C2

triadic

#366FC2 #C2366F #6FC236

tetradic

#366FC2 #C236B5 #C28936 #36C243

square

#366FC2 #C236B5 #C28936 #36C243

split-complementary

#366FC2 #C24336 #B5C236

monochromatic

#1B3862 #295492 #366FC2 #6290D3 #92B2E1

Accessibility & contrast

On white

4.99

#366FC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#366FC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FC2

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FC2	#FFFFFF	#000000	##FFFFFF
##366FC2	1.00	4.99	4.21	4.99
#FFFFFF	4.99	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4776C5

Deuteranopia (green-blind)

#2E6AC0

Tritanopia (blue-blind)

#00828F

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366fc2;
/* rgb */ color: rgb(54, 111, 194);
/* oklch */ color: oklch(54.6% 0.143 258.0);

Tailwind

colors: {
  custom: {
    50: '#7e97d5',
    500: '#366fc2',
    950: '#000000',
  },
}

SCSS

$custom: #366fc2;
$custom-light: #7e97d5;
$custom-dark: #000000;

JSON

{
  "hex": "#366fc2",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 194
  },
  "hsl": {
    "h": 215.571,
    "s": 56.452,
    "l": 48.627
  },
  "oklch": {
    "l": 0.54618,
    "c": 0.14286,
    "h": 258
  },
  "luminance": 0.16048
}

Semantic roles & 50–950 ramp

primary

#366FC2

secondary

#CCB088

accent

#A248E0

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366FC2

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

Preview Lab → · Contrast checker → · Palette generator →