#366FB0#366FB0

#366FB0 is a mid, moderate cyan. Relative luminance 0.153; OKLCH L 53.5% C 0.119 H 253.5°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#366FB0
RGB	rgb(54, 111, 176)
HSL	hsl(212, 53%, 45%)
HSV	hsv(212, 69%, 69%)
CMYK	cmyk(69.3%, 36.9%, 0%, 31%)
CIE-LAB	lab(46.02, 3.09, -40.05)
CIE-LCH	lch(46.02, 40.17, 274.42°)
OKLab	oklab(53.5% -0.0338 -0.1139)
OKLCH	oklch(53.5% 0.119 253.5)
XYZ	xyz(15.0393, 15.2862, 43.2238)
Luminance	0.1529 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FB0 #B07736

analogous

#36ACB0 #366FB0 #3A36B0

triadic

#366FB0 #B0366F #6FB036

tetradic

#366FB0 #B036AC #B07736 #36B03A

square

#366FB0 #B036AC #B07736 #36B03A

split-complementary

#366FB0 #B03A36 #ACB036

monochromatic

#193452 #285181 #366FB0 #588ECC #86ADDA

Accessibility & contrast

On white

5.18

#366FB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#366FB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FB0

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FB0	#FFFFFF	#000000	##FFFFFF
##366FB0	1.00	5.18	4.06	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5273B3

Deuteranopia (green-blind)

#4068AF

Tritanopia (blue-blind)

#007E87

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366fb0;
/* rgb */ color: rgb(54, 111, 176);
/* oklch */ color: oklch(53.5% 0.119 253.5);

Tailwind

colors: {
  custom: {
    50: '#7b97c8',
    500: '#366fb0',
    950: '#000000',
  },
}

SCSS

$custom: #366fb0;
$custom-light: #7b97c8;
$custom-dark: #000000;

JSON

{
  "hex": "#366fb0",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 176
  },
  "hsl": {
    "h": 211.967,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.53502,
    "c": 0.11878,
    "h": 253.5
  },
  "luminance": 0.15288
}

Semantic roles & 50–950 ramp

primary

#366FB0

secondary

#C4A37E

accent

#994BDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #366FB0

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

Preview Lab → · Contrast checker → · Palette generator →