#366BA3#366BA3

#366BA3 is a mid, moderate cyan. Relative luminance 0.139; OKLCH L 51.8% C 0.106 H 251.7°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#366BA3
RGB	rgb(54, 107, 163)
HSL	hsl(211, 50%, 43%)
HSV	hsv(211, 67%, 64%)
CMYK	cmyk(66.9%, 34.4%, 0%, 36.1%)
CIE-LAB	lab(44.15, 0.88, -35.39)
CIE-LCH	lch(44.15, 35.40, 271.42°)
OKLab	oklab(51.81% -0.0332 -0.1003)
OKLCH	oklch(51.81% 0.106 251.7)
XYZ	xyz(13.3874, 13.9427, 36.6289)
Luminance	0.1394 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BA3 #A36E36

analogous

#36A1A3 #366BA3 #3836A3

triadic

#366BA3 #A3366B #6BA336

tetradic

#366BA3 #A336A1 #A36E36 #36A338

square

#366BA3 #A336A1 #A36E36 #36A338

split-complementary

#366BA3 #A33836 #A1A336

monochromatic

#182F47 #274D75 #366BA3 #5189C5 #7FA9D5

Accessibility & contrast

On white

5.54

#366BA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#366BA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BA3

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BA3	#FFFFFF	#000000	##FFFFFF
##366BA3	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#526EA5

Deuteranopia (green-blind)

#4364A2

Tritanopia (blue-blind)

#00787F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #366ba3;
/* rgb */ color: rgb(54, 107, 163);
/* oklch */ color: oklch(51.8% 0.106 251.7);

Tailwind

colors: {
  custom: {
    50: '#7995be',
    500: '#366ba3',
    950: '#000000',
  },
}

SCSS

$custom: #366ba3;
$custom-light: #7995be;
$custom-dark: #000000;

JSON

{
  "hex": "#366ba3",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 163
  },
  "hsl": {
    "h": 210.826,
    "s": 50.23,
    "l": 42.549
  },
  "oklch": {
    "l": 0.51813,
    "c": 0.10564,
    "h": 251.7
  },
  "luminance": 0.13944
}

Semantic roles & 50–950 ramp

primary

#366BA3

secondary

#BE9B77

accent

#964EDA

background

#F7F9FB

surface

#EEF1F7

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366BA3

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

Preview Lab → · Contrast checker → · Palette generator →