#366DA4#366DA4

#366DA4 is a mid, moderate cyan. Relative luminance 0.144; OKLCH L 52.3% C 0.105 H 250.5°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#366DA4
RGB	rgb(54, 109, 164)
HSL	hsl(210, 50%, 43%)
HSV	hsv(210, 67%, 64%)
CMYK	cmyk(67.1%, 33.5%, 0%, 35.7%)
CIE-LAB	lab(44.80, 0.01, -34.95)
CIE-LCH	lch(44.80, 34.95, 270.01°)
OKLab	oklab(52.34% -0.035 -0.099)
OKLCH	oklch(52.34% 0.105 250.5)
XYZ	xyz(13.6883, 14.4005, 37.1729)
Luminance	0.1440 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DA4 #A46D36

analogous

#36A4A4 #366DA4 #3636A4

triadic

#366DA4 #A4366D #6DA436

tetradic

#366DA4 #A436A4 #A46D36 #36A436

square

#366DA4 #A436A4 #A46D36 #36A436

split-complementary

#366DA4 #A43636 #A4A436

monochromatic

#183048 #274E76 #366DA4 #518CC6 #7FAAD5

Accessibility & contrast

On white

5.41

#366DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#366DA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DA4

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DA4	#FFFFFF	#000000	##FFFFFF
##366DA4	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5570A6

Deuteranopia (green-blind)

#4665A3

Tritanopia (blue-blind)

#007A81

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #366da4;
/* rgb */ color: rgb(54, 109, 164);
/* oklch */ color: oklch(52.3% 0.105 250.5);

Tailwind

colors: {
  custom: {
    50: '#7996bf',
    500: '#366da4',
    950: '#000000',
  },
}

SCSS

$custom: #366da4;
$custom-light: #7996bf;
$custom-dark: #000000;

JSON

{
  "hex": "#366da4",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 164
  },
  "hsl": {
    "h": 210,
    "s": 50.459,
    "l": 42.745
  },
  "oklch": {
    "l": 0.52341,
    "c": 0.105,
    "h": 250.5
  },
  "luminance": 0.14402
}

Semantic roles & 50–950 ramp

primary

#366DA4

secondary

#BE9B78

accent

#944EDA

background

#F7F9FB

surface

#EEF1F7

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366DA4

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

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