#366AB2#366AB2

#366AB2 is a mid, vivid cyan. Relative luminance 0.143; OKLCH L 52.5% C 0.127 H 257.1°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#366AB2
RGB	rgb(54, 106, 178)
HSL	hsl(215, 53%, 45%)
HSV	hsv(215, 70%, 70%)
CMYK	cmyk(69.7%, 40.4%, 0%, 30.2%)
CIE-LAB	lab(44.67, 6.94, -43.37)
CIE-LCH	lch(44.67, 43.92, 279.09°)
OKLab	oklab(52.48% -0.0284 -0.1237)
OKLCH	oklch(52.48% 0.127 257.1)
XYZ	xyz(14.7083, 14.3052, 44.0969)
Luminance	0.1431 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AB2 #B27E36

analogous

#36A8B2 #366AB2 #4036B2

triadic

#366AB2 #B2366A #6AB236

tetradic

#366AB2 #B236A8 #B27E36 #36B240

square

#366AB2 #B236A8 #B27E36 #36B240

split-complementary

#366AB2 #B24036 #A8B236

monochromatic

#1A3254 #284E83 #366AB2 #5989CD #88AADB

Accessibility & contrast

On white

5.44

#366AB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#366AB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AB2

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AB2	#FFFFFF	#000000	##FFFFFF
##366AB2	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4970B5

Deuteranopia (green-blind)

#3564B1

Tritanopia (blue-blind)

#007B85

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #366ab2;
/* rgb */ color: rgb(54, 106, 178);
/* oklch */ color: oklch(52.5% 0.127 257.1);

Tailwind

colors: {
  custom: {
    50: '#7b94c9',
    500: '#366ab2',
    950: '#000000',
  },
}

SCSS

$custom: #366ab2;
$custom-light: #7b94c9;
$custom-dark: #000000;

JSON

{
  "hex": "#366ab2",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 178
  },
  "hsl": {
    "h": 214.839,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52481,
    "c": 0.12688,
    "h": 257.1
  },
  "luminance": 0.14307
}

Semantic roles & 50–950 ramp

primary

#366AB2

secondary

#C5A87F

accent

#A04BDD

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #366AB2

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

Preview Lab → · Contrast checker → · Palette generator →