#366AA4#366AA4

#366AA4 is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.6% C 0.108 H 252.8°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#366AA4
RGB	rgb(54, 106, 164)
HSL	hsl(212, 50%, 43%)
HSV	hsv(212, 67%, 64%)
CMYK	cmyk(67.1%, 35.4%, 0%, 35.7%)
CIE-LAB	lab(43.90, 1.86, -36.37)
CIE-LCH	lch(43.90, 36.42, 272.92°)
OKLab	oklab(51.64% -0.0319 -0.1032)
OKLCH	oklch(51.64% 0.108 252.8)
XYZ	xyz(13.3737, 13.7713, 37.0681)
Luminance	0.1377 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AA4 #A47036

analogous

#36A1A4 #366AA4 #3936A4

triadic

#366AA4 #A4366A #6AA436

tetradic

#366AA4 #A436A1 #A47036 #36A439

square

#366AA4 #A436A1 #A47036 #36A439

split-complementary

#366AA4 #A43936 #A1A436

monochromatic

#182E48 #274C76 #366AA4 #5188C6 #7FA8D5

Accessibility & contrast

On white

5.59

#366AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#366AA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AA4

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AA4	#FFFFFF	#000000	##FFFFFF
##366AA4	1.00	5.59	3.75	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#516DA6

Deuteranopia (green-blind)

#4163A3

Tritanopia (blue-blind)

#00777F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #366aa4;
/* rgb */ color: rgb(54, 106, 164);
/* oklch */ color: oklch(51.6% 0.108 252.8);

Tailwind

colors: {
  custom: {
    50: '#7994bf',
    500: '#366aa4',
    950: '#000000',
  },
}

SCSS

$custom: #366aa4;
$custom-light: #7994bf;
$custom-dark: #000000;

JSON

{
  "hex": "#366aa4",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 164
  },
  "hsl": {
    "h": 211.636,
    "s": 50.459,
    "l": 42.745
  },
  "oklch": {
    "l": 0.51636,
    "c": 0.10798,
    "h": 252.8
  },
  "luminance": 0.13773
}

Semantic roles & 50–950 ramp

primary

#366AA4

secondary

#BE9D78

accent

#984EDA

background

#F7F9FB

surface

#EEF1F7

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366AA4

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

Preview Lab → · Contrast checker → · Palette generator →