#366FB2#366FB2

#366FB2 is a mid, vivid cyan. Relative luminance 0.154; OKLCH L 53.6% C 0.121 H 254.1°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#366FB2
RGB	rgb(54, 111, 178)
HSL	hsl(212, 53%, 45%)
HSV	hsv(212, 70%, 70%)
CMYK	cmyk(69.7%, 37.6%, 0%, 30.2%)
CIE-LAB	lab(46.13, 3.82, -41.05)
CIE-LCH	lch(46.13, 41.22, 275.32°)
OKLab	oklab(53.62% -0.0333 -0.1168)
OKLCH	oklch(53.62% 0.121 254.1)
XYZ	xyz(15.2387, 15.3659, 44.2737)
Luminance	0.1537 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FB2 #B27936

analogous

#36ADB2 #366FB2 #3B36B2

triadic

#366FB2 #B2366F #6FB236

tetradic

#366FB2 #B236AD #B27936 #36B23B

square

#366FB2 #B236AD #B27936 #36B23B

split-complementary

#366FB2 #B23B36 #ADB236

monochromatic

#1A3454 #285283 #366FB2 #598ECD #88AEDB

Accessibility & contrast

On white

5.16

#366FB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#366FB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FB2

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FB2	#FFFFFF	#000000	##FFFFFF
##366FB2	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5174B5

Deuteranopia (green-blind)

#3E68B1

Tritanopia (blue-blind)

#007F88

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366fb2;
/* rgb */ color: rgb(54, 111, 178);
/* oklch */ color: oklch(53.6% 0.121 254.1);

Tailwind

colors: {
  custom: {
    50: '#7b97c9',
    500: '#366fb2',
    950: '#000000',
  },
}

SCSS

$custom: #366fb2;
$custom-light: #7b97c9;
$custom-dark: #000000;

JSON

{
  "hex": "#366fb2",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 178
  },
  "hsl": {
    "h": 212.419,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.53621,
    "c": 0.12143,
    "h": 254.1
  },
  "luminance": 0.15368
}

Semantic roles & 50–950 ramp

primary

#366FB2

secondary

#C5A57F

accent

#9A4BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #366FB2

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

Preview Lab → · Contrast checker → · Palette generator →