#366ABD#366ABD

#366ABD is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.2% C 0.142 H 259.4°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#366ABD
RGB	rgb(54, 106, 189)
HSL	hsl(217, 56%, 48%)
HSV	hsv(217, 71%, 74%)
CMYK	cmyk(71.4%, 43.9%, 0%, 25.9%)
CIE-LAB	lab(45.31, 10.99, -48.75)
CIE-LCH	lch(45.31, 49.97, 282.70°)
OKLab	oklab(53.19% -0.0261 -0.1394)
OKLCH	oklch(53.19% 0.142 259.4)
XYZ	xyz(15.8573, 14.7648, 50.1484)
Luminance	0.1477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366ABD #BD8936

analogous

#36ADBD #366ABD #4536BD

triadic

#366ABD #BD366A #6ABD36

tetradic

#366ABD #BD36AD #BD8936 #36BD45

square

#366ABD #BD36AD #BD8936 #36BD45

split-complementary

#366ABD #BD4536 #ADBD36

monochromatic

#1B355E #284F8D #366ABD #5F8BD1 #8FADDF

Accessibility & contrast

On white

5.31

#366ABD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#366ABD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366ABD

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366ABD	#FFFFFF	#000000	##FFFFFF
##366ABD	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4172C0

Deuteranopia (green-blind)

#2865BB

Tritanopia (blue-blind)

#007D8A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366abd;
/* rgb */ color: rgb(54, 106, 189);
/* oklch */ color: oklch(53.2% 0.142 259.4);

Tailwind

colors: {
  custom: {
    50: '#7d94d1',
    500: '#366abd',
    950: '#000000',
  },
}

SCSS

$custom: #366abd;
$custom-light: #7d94d1;
$custom-dark: #000000;

JSON

{
  "hex": "#366abd",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 189
  },
  "hsl": {
    "h": 216.889,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53188,
    "c": 0.14186,
    "h": 259.4
  },
  "luminance": 0.14766
}

Semantic roles & 50–950 ramp

primary

#366ABD

secondary

#C9AF85

accent

#A549DF

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366ABD

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

Preview Lab → · Contrast checker → · Palette generator →