#366EBF#366EBF

#366EBF is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.2% C 0.140 H 257.9°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#366EBF
RGB	rgb(54, 110, 191)
HSL	hsl(215, 56%, 48%)
HSV	hsv(215, 72%, 75%)
CMYK	cmyk(71.7%, 42.4%, 0%, 25.1%)
CIE-LAB	lab(46.57, 9.20, -47.88)
CIE-LCH	lch(46.57, 48.76, 280.88°)
OKLab	oklab(54.2% -0.0294 -0.1368)
OKLCH	oklch(54.2% 0.14 257.9)
XYZ	xyz(16.4978, 15.6959, 51.4403)
Luminance	0.1570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EBF #BF8736

analogous

#36B2BF #366EBF #4236BF

triadic

#366EBF #BF366E #6EBF36

tetradic

#366EBF #BF36B2 #BF8736 #36BF42

square

#366EBF #BF36B2 #BF8736 #36BF42

split-complementary

#366EBF #BF4236 #B2BF36

monochromatic

#1B3760 #29538F #366EBF #608FD2 #90B0E0

Accessibility & contrast

On white

5.07

#366EBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#366EBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EBF

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EBF	#FFFFFF	#000000	##FFFFFF
##366EBF	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4775C2

Deuteranopia (green-blind)

#2F69BD

Tritanopia (blue-blind)

#00818D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366ebf;
/* rgb */ color: rgb(54, 110, 191);
/* oklch */ color: oklch(54.2% 0.140 257.9);

Tailwind

colors: {
  custom: {
    50: '#7e97d3',
    500: '#366ebf',
    950: '#000000',
  },
}

SCSS

$custom: #366ebf;
$custom-light: #7e97d3;
$custom-dark: #000000;

JSON

{
  "hex": "#366ebf",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 191
  },
  "hsl": {
    "h": 215.474,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.54203,
    "c": 0.13996,
    "h": 257.9
  },
  "luminance": 0.15698
}

Semantic roles & 50–950 ramp

primary

#366EBF

secondary

#CAAF87

accent

#A249DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366EBF

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

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