#366BA4#366BA4

#366BA4 is a mid, moderate cyan. Relative luminance 0.140; OKLCH L 51.9% C 0.107 H 252.1°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#366BA4
RGB	rgb(54, 107, 164)
HSL	hsl(211, 50%, 43%)
HSV	hsv(211, 67%, 64%)
CMYK	cmyk(67.1%, 34.8%, 0%, 35.7%)
CIE-LAB	lab(44.20, 1.24, -35.90)
CIE-LCH	lch(44.20, 35.92, 271.98°)
OKLab	oklab(51.87% -0.0329 -0.1018)
OKLCH	oklch(51.87% 0.107 252.1)
XYZ	xyz(13.4774, 13.9786, 37.1026)
Luminance	0.1398 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BA4 #A46F36

analogous

#36A2A4 #366BA4 #3836A4

triadic

#366BA4 #A4366B #6BA436

tetradic

#366BA4 #A436A2 #A46F36 #36A438

square

#366BA4 #A436A2 #A46F36 #36A438

split-complementary

#366BA4 #A43836 #A2A436

monochromatic

#182F48 #274D76 #366BA4 #5189C6 #7FA9D5

Accessibility & contrast

On white

5.53

#366BA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#366BA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BA4

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BA4	#FFFFFF	#000000	##FFFFFF
##366BA4	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#526EA6

Deuteranopia (green-blind)

#4364A3

Tritanopia (blue-blind)

#007880

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #366ba4;
/* rgb */ color: rgb(54, 107, 164);
/* oklch */ color: oklch(51.9% 0.107 252.1);

Tailwind

colors: {
  custom: {
    50: '#7995bf',
    500: '#366ba4',
    950: '#000000',
  },
}

SCSS

$custom: #366ba4;
$custom-light: #7995bf;
$custom-dark: #000000;

JSON

{
  "hex": "#366ba4",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 164
  },
  "hsl": {
    "h": 211.091,
    "s": 50.459,
    "l": 42.745
  },
  "oklch": {
    "l": 0.51871,
    "c": 0.10697,
    "h": 252.1
  },
  "luminance": 0.1398
}

Semantic roles & 50–950 ramp

primary

#366BA4

secondary

#BE9C78

accent

#964EDA

background

#F7F9FB

surface

#EEF1F7

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366BA4

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

Preview Lab → · Contrast checker → · Palette generator →