#366BB6#366BB6

#366BB6 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.0% C 0.131 H 257.5°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#366BB6
RGB	rgb(54, 107, 182)
HSL	hsl(215, 54%, 46%)
HSV	hsv(215, 70%, 71%)
CMYK	cmyk(70.3%, 41.2%, 0%, 28.6%)
CIE-LAB	lab(45.19, 7.78, -44.88)
CIE-LCH	lch(45.19, 45.55, 279.83°)
OKLab	oklab(52.96% -0.0285 -0.1281)
OKLCH	oklch(52.96% 0.131 257.5)
XYZ	xyz(15.2194, 14.6755, 46.2775)
Luminance	0.1468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BB6 #B68136

analogous

#36ABB6 #366BB6 #4136B6

triadic

#366BB6 #B6366B #6BB636

tetradic

#366BB6 #B636AB #B68136 #36B641

square

#366BB6 #B636AB #B68136 #36B641

split-complementary

#366BB6 #B64136 #ABB636

monochromatic

#1A3458 #284F87 #366BB6 #5B8BCE #8AACDC

Accessibility & contrast

On white

5.34

#366BB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#366BB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BB6

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BB6	#FFFFFF	#000000	##FFFFFF
##366BB6	1.00	5.34	3.94	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4871B9

Deuteranopia (green-blind)

#3365B4

Tritanopia (blue-blind)

#007C87

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366bb6;
/* rgb */ color: rgb(54, 107, 182);
/* oklch */ color: oklch(53.0% 0.131 257.5);

Tailwind

colors: {
  custom: {
    50: '#7c94cc',
    500: '#366bb6',
    950: '#000000',
  },
}

SCSS

$custom: #366bb6;
$custom-light: #7c94cc;
$custom-dark: #000000;

JSON

{
  "hex": "#366bb6",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 182
  },
  "hsl": {
    "h": 215.156,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52959,
    "c": 0.13119,
    "h": 257.5
  },
  "luminance": 0.14677
}

Semantic roles & 50–950 ramp

primary

#366BB6

secondary

#C6AA81

accent

#A14ADE

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #366BB6

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

Preview Lab → · Contrast checker → · Palette generator →