#366EBD#366EBD

#366EBD is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.1% C 0.137 H 257.5°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#366EBD
RGB	rgb(54, 110, 189)
HSL	hsl(215, 56%, 48%)
HSV	hsv(215, 71%, 74%)
CMYK	cmyk(71.4%, 41.8%, 0%, 25.9%)
CIE-LAB	lab(46.46, 8.46, -46.91)
CIE-LCH	lch(46.46, 47.67, 280.23°)
OKLab	oklab(54.08% -0.0298 -0.134)
OKLCH	oklch(54.08% 0.137 257.5)
XYZ	xyz(16.2792, 15.6085, 50.2890)
Luminance	0.1561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EBD #BD8536

analogous

#36B2BD #366EBD #4136BD

triadic

#366EBD #BD366E #6EBD36

tetradic

#366EBD #BD36B2 #BD8536 #36BD41

square

#366EBD #BD36B2 #BD8536 #36BD41

split-complementary

#366EBD #BD4136 #B2BD36

monochromatic

#1B375E #28528D #366EBD #5F8ED1 #8FB0DF

Accessibility & contrast

On white

5.09

#366EBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#366EBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EBD

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EBD	#FFFFFF	#000000	##FFFFFF
##366EBD	1.00	5.09	4.12	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4875C0

Deuteranopia (green-blind)

#3268BB

Tritanopia (blue-blind)

#00808C

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366ebd;
/* rgb */ color: rgb(54, 110, 189);
/* oklch */ color: oklch(54.1% 0.137 257.5);

Tailwind

colors: {
  custom: {
    50: '#7d97d1',
    500: '#366ebd',
    950: '#000000',
  },
}

SCSS

$custom: #366ebd;
$custom-light: #7d97d1;
$custom-dark: #000000;

JSON

{
  "hex": "#366ebd",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 189
  },
  "hsl": {
    "h": 215.111,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.54075,
    "c": 0.13727,
    "h": 257.5
  },
  "luminance": 0.1561
}

Semantic roles & 50–950 ramp

primary

#366EBD

secondary

#C9AD85

accent

#A149DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366EBD

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

Preview Lab → · Contrast checker → · Palette generator →