#366BCF#366BCF

#366BCF is a mid, vivid blue. Relative luminance 0.158; OKLCH L 54.6% C 0.165 H 261.6°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#366BCF
RGB	rgb(54, 107, 207)
HSL	hsl(219, 61%, 51%)
HSV	hsv(219, 74%, 81%)
CMYK	cmyk(73.9%, 48.3%, 0%, 18.8%)
CIE-LAB	lab(46.71, 17.01, -56.85)
CIE-LCH	lch(46.71, 59.34, 286.66°)
OKLab	oklab(54.63% -0.024 -0.1633)
OKLCH	oklch(54.63% 0.165 261.6)
XYZ	xyz(18.0375, 15.8027, 61.1190)
Luminance	0.1580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BCF #CF9A36

analogous

#36B7CF #366BCF #4D36CF

triadic

#366BCF #CF366B #6BCF36

tetradic

#366BCF #CF36B7 #CF9A36 #36CF4D

square

#366BCF #CF36B7 #CF9A36 #36CF4D

split-complementary

#366BCF #CF4D36 #B7CF36

monochromatic

#1B3870 #2751A1 #366BCF #678FDB #99B4E7

Accessibility & contrast

On white

5.05

#366BCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#366BCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BCF

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BCF	#FFFFFF	#000000	##FFFFFF
##366BCF	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3376D3

Deuteranopia (green-blind)

#0068CD

Tritanopia (blue-blind)

#008393

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366bcf;
/* rgb */ color: rgb(54, 107, 207);
/* oklch */ color: oklch(54.6% 0.165 261.6);

Tailwind

colors: {
  custom: {
    50: '#8194de',
    500: '#366bcf',
    950: '#000000',
  },
}

SCSS

$custom: #366bcf;
$custom-light: #8194de;
$custom-dark: #000000;

JSON

{
  "hex": "#366bcf",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 207
  },
  "hsl": {
    "h": 219.216,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.54629,
    "c": 0.16502,
    "h": 261.6
  },
  "luminance": 0.15805
}

Semantic roles & 50–950 ramp

primary

#366BCF

secondary

#D2BB8F

accent

#AD43E5

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366BCF

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

Preview Lab → · Contrast checker → · Palette generator →