#366DB0#366DB0

#366DB0 is a mid, vivid cyan. Relative luminance 0.149; OKLCH L 53.0% C 0.121 H 254.7°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#366DB0
RGB	rgb(54, 109, 176)
HSL	hsl(213, 53%, 45%)
HSV	hsv(213, 69%, 69%)
CMYK	cmyk(69.3%, 38.1%, 0%, 31%)
CIE-LAB	lab(45.43, 4.33, -40.99)
CIE-LCH	lch(45.43, 41.21, 276.04°)
OKLab	oklab(53.04% -0.0318 -0.1166)
OKLCH	oklch(53.04% 0.121 254.7)
XYZ	xyz(14.8236, 14.8546, 43.1519)
Luminance	0.1486 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DB0 #B07936

analogous

#36AAB0 #366DB0 #3C36B0

triadic

#366DB0 #B0366D #6DB036

tetradic

#366DB0 #B036AA #B07936 #36B03C

square

#366DB0 #B036AA #B07936 #36B03C

split-complementary

#366DB0 #B03C36 #AAB036

monochromatic

#193352 #285081 #366DB0 #588CCC #86ACDA

Accessibility & contrast

On white

5.29

#366DB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#366DB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DB0

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DB0	#FFFFFF	#000000	##FFFFFF
##366DB0	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F72B3

Deuteranopia (green-blind)

#3D66AF

Tritanopia (blue-blind)

#007D86

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #366db0;
/* rgb */ color: rgb(54, 109, 176);
/* oklch */ color: oklch(53.0% 0.121 254.7);

Tailwind

colors: {
  custom: {
    50: '#7b96c8',
    500: '#366db0',
    950: '#000000',
  },
}

SCSS

$custom: #366db0;
$custom-light: #7b96c8;
$custom-dark: #000000;

JSON

{
  "hex": "#366db0",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 176
  },
  "hsl": {
    "h": 212.951,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.53042,
    "c": 0.12089,
    "h": 254.7
  },
  "luminance": 0.14856
}

Semantic roles & 50–950 ramp

primary

#366DB0

secondary

#C4A47E

accent

#9B4BDC

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #366DB0

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

Preview Lab → · Contrast checker → · Palette generator →