#366EB6#366EB6

#366EB6 is a mid, vivid cyan. Relative luminance 0.153; OKLCH L 53.6% C 0.128 H 255.8°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#366EB6
RGB	rgb(54, 110, 182)
HSL	hsl(214, 54%, 46%)
HSV	hsv(214, 70%, 71%)
CMYK	cmyk(70.3%, 39.6%, 0%, 28.6%)
CIE-LAB	lab(46.06, 5.90, -43.49)
CIE-LCH	lch(46.06, 43.89, 277.72°)
OKLab	oklab(53.64% -0.0314 -0.1239)
OKLCH	oklch(53.64% 0.128 255.8)
XYZ	xyz(15.5377, 15.3119, 46.3835)
Luminance	0.1531 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EB6 #B67E36

analogous

#36AEB6 #366EB6 #3E36B6

triadic

#366EB6 #B6366E #6EB636

tetradic

#366EB6 #B636AE #B67E36 #36B63E

square

#366EB6 #B636AE #B67E36 #36B63E

split-complementary

#366EB6 #B63E36 #AEB636

monochromatic

#1A3558 #285187 #366EB6 #5B8DCE #8AAEDC

Accessibility & contrast

On white

5.17

#366EB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#366EB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EB6

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EB6	#FFFFFF	#000000	##FFFFFF
##366EB6	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D74B9

Deuteranopia (green-blind)

#3968B5

Tritanopia (blue-blind)

#007F89

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366eb6;
/* rgb */ color: rgb(54, 110, 182);
/* oklch */ color: oklch(53.6% 0.128 255.8);

Tailwind

colors: {
  custom: {
    50: '#7c97cc',
    500: '#366eb6',
    950: '#000000',
  },
}

SCSS

$custom: #366eb6;
$custom-light: #7c97cc;
$custom-dark: #000000;

JSON

{
  "hex": "#366eb6",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 182
  },
  "hsl": {
    "h": 213.75,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53636,
    "c": 0.12785,
    "h": 255.8
  },
  "luminance": 0.15314
}

Semantic roles & 50–950 ramp

primary

#366EB6

secondary

#C6A881

accent

#9D4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #366EB6

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

Preview Lab → · Contrast checker → · Palette generator →