#366BB2#366BB2

#366BB2 is a mid, vivid cyan. Relative luminance 0.145; OKLCH L 52.7% C 0.126 H 256.5°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#366BB2
RGB	rgb(54, 107, 178)
HSL	hsl(214, 53%, 45%)
HSV	hsv(214, 70%, 70%)
CMYK	cmyk(69.7%, 39.9%, 0%, 30.2%)
CIE-LAB	lab(44.96, 6.31, -42.91)
CIE-LCH	lch(44.96, 43.37, 278.37°)
OKLab	oklab(52.71% -0.0294 -0.1223)
OKLCH	oklch(52.71% 0.126 256.5)
XYZ	xyz(14.8120, 14.5125, 44.1314)
Luminance	0.1451 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BB2 #B27D36

analogous

#36A9B2 #366BB2 #3F36B2

triadic

#366BB2 #B2366B #6BB236

tetradic

#366BB2 #B236A9 #B27D36 #36B23F

square

#366BB2 #B236A9 #B27D36 #36B23F

split-complementary

#366BB2 #B23F36 #A9B236

monochromatic

#1A3354 #284F83 #366BB2 #598ACD #88ABDB

Accessibility & contrast

On white

5.38

#366BB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#366BB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BB2

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BB2	#FFFFFF	#000000	##FFFFFF
##366BB2	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A71B5

Deuteranopia (green-blind)

#3765B1

Tritanopia (blue-blind)

#007B86

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #366bb2;
/* rgb */ color: rgb(54, 107, 178);
/* oklch */ color: oklch(52.7% 0.126 256.5);

Tailwind

colors: {
  custom: {
    50: '#7b94c9',
    500: '#366bb2',
    950: '#000000',
  },
}

SCSS

$custom: #366bb2;
$custom-light: #7b94c9;
$custom-dark: #000000;

JSON

{
  "hex": "#366bb2",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 178
  },
  "hsl": {
    "h": 214.355,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52708,
    "c": 0.12576,
    "h": 256.5
  },
  "luminance": 0.14514
}

Semantic roles & 50–950 ramp

primary

#366BB2

secondary

#C5A77F

accent

#9E4BDD

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #366BB2

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

Preview Lab → · Contrast checker → · Palette generator →