#366DBC#366DBC

#366DBC is a mid, vivid blue. Relative luminance 0.154; OKLCH L 53.8% C 0.137 H 257.7°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#366DBC
RGB	rgb(54, 109, 188)
HSL	hsl(215, 55%, 47%)
HSV	hsv(215, 71%, 74%)
CMYK	cmyk(71.3%, 42%, 0%, 26.3%)
CIE-LAB	lab(46.11, 8.72, -46.89)
CIE-LCH	lch(46.11, 47.69, 280.54°)
OKLab	oklab(53.79% -0.0291 -0.1339)
OKLCH	oklch(53.79% 0.137 257.7)
XYZ	xyz(16.0638, 15.3507, 49.6836)
Luminance	0.1535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DBC #BC8536

analogous

#36B0BC #366DBC #4236BC

triadic

#366DBC #BC366D #6DBC36

tetradic

#366DBC #BC36B0 #BC8536 #36BC42

square

#366DBC #BC36B0 #BC8536 #36BC42

split-complementary

#366DBC #BC4236 #B0BC36

monochromatic

#1B365D #28518C #366DBC #5E8DD1 #8EAFDF

Accessibility & contrast

On white

5.16

#366DBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#366DBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DBC

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DBC	#FFFFFF	#000000	##FFFFFF
##366DBC	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4774BF

Deuteranopia (green-blind)

#3167BA

Tritanopia (blue-blind)

#007F8B

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366dbc;
/* rgb */ color: rgb(54, 109, 188);
/* oklch */ color: oklch(53.8% 0.137 257.7);

Tailwind

colors: {
  custom: {
    50: '#7d96d0',
    500: '#366dbc',
    950: '#000000',
  },
}

SCSS

$custom: #366dbc;
$custom-light: #7d96d0;
$custom-dark: #000000;

JSON

{
  "hex": "#366dbc",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 188
  },
  "hsl": {
    "h": 215.373,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53788,
    "c": 0.13705,
    "h": 257.7
  },
  "luminance": 0.15352
}

Semantic roles & 50–950 ramp

primary

#366DBC

secondary

#C9AD85

accent

#A149DF

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366DBC

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

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