#366CB7#366CB7

#366CB7 is a mid, vivid cyan. Relative luminance 0.149; OKLCH L 53.2% C 0.131 H 257.2°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#366CB7
RGB	rgb(54, 108, 183)
HSL	hsl(215, 54%, 46%)
HSV	hsv(215, 70%, 72%)
CMYK	cmyk(70.5%, 41%, 0%, 28.2%)
CIE-LAB	lab(45.53, 7.52, -44.91)
CIE-LCH	lch(45.53, 45.53, 279.50°)
OKLab	oklab(53.25% -0.0292 -0.1281)
OKLCH	oklch(53.25% 0.131 257.2)
XYZ	xyz(15.4280, 14.9267, 46.8586)
Luminance	0.1493 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366CB7 #B78136

analogous

#36ADB7 #366CB7 #4136B7

triadic

#366CB7 #B7366C #6CB736

tetradic

#366CB7 #B736AD #B78136 #36B741

square

#366CB7 #B736AD #B78136 #36B741

split-complementary

#366CB7 #B74136 #ADB736

monochromatic

#1A3458 #285088 #366CB7 #5B8CCF #8BADDD

Accessibility & contrast

On white

5.27

#366CB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#366CB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366CB7

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366CB7	#FFFFFF	#000000	##FFFFFF
##366CB7	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4972BA

Deuteranopia (green-blind)

#3466B5

Tritanopia (blue-blind)

#007D88

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #366cb7;
/* rgb */ color: rgb(54, 108, 183);
/* oklch */ color: oklch(53.2% 0.131 257.2);

Tailwind

colors: {
  custom: {
    50: '#7c95cd',
    500: '#366cb7',
    950: '#000000',
  },
}

SCSS

$custom: #366cb7;
$custom-light: #7c95cd;
$custom-dark: #000000;

JSON

{
  "hex": "#366cb7",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 183
  },
  "hsl": {
    "h": 214.884,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.53247,
    "c": 0.13142,
    "h": 257.2
  },
  "luminance": 0.14928
}

Semantic roles & 50–950 ramp

primary

#366CB7

secondary

#C7AA82

accent

#A04ADE

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #366CB7

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

Preview Lab → · Contrast checker → · Palette generator →