#366BB4#366BB4

#366BB4 is a mid, vivid cyan. Relative luminance 0.146; OKLCH L 52.8% C 0.128 H 257.0°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#366BB4
RGB	rgb(54, 107, 180)
HSL	hsl(215, 54%, 46%)
HSV	hsv(215, 70%, 71%)
CMYK	cmyk(70%, 40.6%, 0%, 29.4%)
CIE-LAB	lab(45.07, 7.04, -43.90)
CIE-LCH	lch(45.07, 44.46, 279.12°)
OKLab	oklab(52.83% -0.0289 -0.1252)
OKLCH	oklch(52.83% 0.128 257)
XYZ	xyz(15.0142, 14.5934, 45.1967)
Luminance	0.1459 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BB4 #B47F36

analogous

#36AAB4 #366BB4 #4036B4

triadic

#366BB4 #B4366B #6BB436

tetradic

#366BB4 #B436AA #B47F36 #36B440

square

#366BB4 #B436AA #B47F36 #36B440

split-complementary

#366BB4 #B44036 #AAB436

monochromatic

#1A3356 #284F85 #366BB4 #5A8ACD #89ACDC

Accessibility & contrast

On white

5.36

#366BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#366BB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BB4

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BB4	#FFFFFF	#000000	##FFFFFF
##366BB4	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4971B7

Deuteranopia (green-blind)

#3565B3

Tritanopia (blue-blind)

#007C87

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366bb4;
/* rgb */ color: rgb(54, 107, 180);
/* oklch */ color: oklch(52.8% 0.128 257.0);

Tailwind

colors: {
  custom: {
    50: '#7c94cb',
    500: '#366bb4',
    950: '#000000',
  },
}

SCSS

$custom: #366bb4;
$custom-light: #7c94cb;
$custom-dark: #000000;

JSON

{
  "hex": "#366bb4",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 180
  },
  "hsl": {
    "h": 214.762,
    "s": 53.846,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52833,
    "c": 0.12848,
    "h": 257
  },
  "luminance": 0.14595
}

Semantic roles & 50–950 ramp

primary

#366BB4

secondary

#C6A880

accent

#A04BDD

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #366BB4

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

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