#366CBF#366CBF

#366CBF is a mid, vivid blue. Relative luminance 0.153; OKLCH L 53.8% C 0.142 H 258.8°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#366CBF
RGB	rgb(54, 108, 191)
HSL	hsl(216, 56%, 48%)
HSV	hsv(216, 72%, 75%)
CMYK	cmyk(71.7%, 43.5%, 0%, 25.1%)
CIE-LAB	lab(46.00, 10.46, -48.80)
CIE-LCH	lch(46.00, 49.91, 282.10°)
OKLab	oklab(53.76% -0.0275 -0.1396)
OKLCH	oklch(53.76% 0.142 258.8)
XYZ	xyz(16.2844, 15.2692, 51.3691)
Luminance	0.1527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366CBF #BF8936

analogous

#36B0BF #366CBF #4436BF

triadic

#366CBF #BF366C #6CBF36

tetradic

#366CBF #BF36B0 #BF8936 #36BF44

square

#366CBF #BF36B0 #BF8936 #36BF44

split-complementary

#366CBF #BF4436 #B0BF36

monochromatic

#1B3660 #29518F #366CBF #608DD2 #90AFE0

Accessibility & contrast

On white

5.18

#366CBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#366CBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366CBF

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366CBF	#FFFFFF	#000000	##FFFFFF
##366CBF	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4374C2

Deuteranopia (green-blind)

#2B67BD

Tritanopia (blue-blind)

#007F8C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366cbf;
/* rgb */ color: rgb(54, 108, 191);
/* oklch */ color: oklch(53.8% 0.142 258.8);

Tailwind

colors: {
  custom: {
    50: '#7e95d3',
    500: '#366cbf',
    950: '#000000',
  },
}

SCSS

$custom: #366cbf;
$custom-light: #7e95d3;
$custom-dark: #000000;

JSON

{
  "hex": "#366cbf",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 191
  },
  "hsl": {
    "h": 216.35,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.5376,
    "c": 0.14225,
    "h": 258.8
  },
  "luminance": 0.15271
}

Semantic roles & 50–950 ramp

primary

#366CBF

secondary

#CAB087

accent

#A449DF

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366CBF

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

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