#366AA6#366AA6

#366AA6 is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.8% C 0.111 H 253.5°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#366AA6
RGB	rgb(54, 106, 166)
HSL	hsl(212, 51%, 43%)
HSV	hsv(212, 67%, 65%)
CMYK	cmyk(67.5%, 36.1%, 0%, 34.9%)
CIE-LAB	lab(44.01, 2.58, -37.38)
CIE-LCH	lch(44.01, 37.47, 273.95°)
OKLab	oklab(51.75% -0.0314 -0.1061)
OKLCH	oklch(51.75% 0.111 253.5)
XYZ	xyz(13.5558, 13.8441, 38.0268)
Luminance	0.1385 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AA6 #A67236

analogous

#36A2A6 #366AA6 #3A36A6

triadic

#366AA6 #A6366A #6AA636

tetradic

#366AA6 #A636A2 #A67236 #36A63A

square

#366AA6 #A636A2 #A67236 #36A63A

split-complementary

#366AA6 #A63A36 #A2A636

monochromatic

#182F4A #274D78 #366AA6 #5288C7 #81A8D6

Accessibility & contrast

On white

5.57

#366AA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#366AA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AA6

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AA6	#FFFFFF	#000000	##FFFFFF
##366AA6	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#506EA8

Deuteranopia (green-blind)

#4063A5

Tritanopia (blue-blind)

#007880

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #366aa6;
/* rgb */ color: rgb(54, 106, 166);
/* oklch */ color: oklch(51.8% 0.111 253.5);

Tailwind

colors: {
  custom: {
    50: '#7994c1',
    500: '#366aa6',
    950: '#000000',
  },
}

SCSS

$custom: #366aa6;
$custom-light: #7994c1;
$custom-dark: #000000;

JSON

{
  "hex": "#366aa6",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 166
  },
  "hsl": {
    "h": 212.143,
    "s": 50.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.51753,
    "c": 0.11064,
    "h": 253.5
  },
  "luminance": 0.13846
}

Semantic roles & 50–950 ramp

primary

#366AA6

secondary

#BF9E79

accent

#994DDA

background

#F7F9FB

surface

#EEF1F7

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366AA6

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

Preview Lab → · Contrast checker → · Palette generator →