#366FCA#366FCA

#366FCA is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.1% C 0.154 H 259.4°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#366FCA
RGB	rgb(54, 111, 202)
HSL	hsl(217, 58%, 50%)
HSV	hsv(217, 73%, 79%)
CMYK	cmyk(73.3%, 45%, 0%, 20.8%)
CIE-LAB	lab(47.51, 12.63, -52.70)
CIE-LCH	lch(47.51, 54.20, 283.47°)
OKLab	oklab(55.14% -0.0282 -0.151)
OKLCH	oklch(55.14% 0.154 259.4)
XYZ	xyz(17.8626, 16.4154, 58.0928)
Luminance	0.1642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FCA #CA9136

analogous

#36B9CA #366FCA #4736CA

triadic

#366FCA #CA366F #6FCA36

tetradic

#366FCA #CA36B9 #CA9136 #36CA47

square

#366FCA #CA36B9 #CA9136 #36CA47

split-complementary

#366FCA #CA4736 #B9CA36

monochromatic

#1C3A6A #29549A #366FCA #6692D7 #97B4E4

Accessibility & contrast

On white

4.90

#366FCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#366FCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FCA

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FCA	#FFFFFF	#000000	##FFFFFF
##366FCA	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4078CD

Deuteranopia (green-blind)

#226AC8

Tritanopia (blue-blind)

#008492

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #366fca;
/* rgb */ color: rgb(54, 111, 202);
/* oklch */ color: oklch(55.1% 0.154 259.4);

Tailwind

colors: {
  custom: {
    50: '#8097db',
    500: '#366fca',
    950: '#000000',
  },
}

SCSS

$custom: #366fca;
$custom-light: #8097db;
$custom-dark: #000000;

JSON

{
  "hex": "#366fca",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 202
  },
  "hsl": {
    "h": 216.892,
    "s": 58.268,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55143,
    "c": 0.1536,
    "h": 259.4
  },
  "luminance": 0.16417
}

Semantic roles & 50–950 ramp

primary

#366FCA

secondary

#CFB58D

accent

#A646E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366FCA

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

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