#366BB1#366BB1

#366BB1 is a mid, vivid cyan. Relative luminance 0.145; OKLCH L 52.6% C 0.124 H 256.2°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#366BB1
RGB	rgb(54, 107, 177)
HSL	hsl(214, 53%, 45%)
HSV	hsv(214, 69%, 69%)
CMYK	cmyk(69.5%, 39.5%, 0%, 30.6%)
CIE-LAB	lab(44.90, 5.95, -42.41)
CIE-LCH	lch(44.90, 42.83, 277.98°)
OKLab	oklab(52.65% -0.0296 -0.1208)
OKLCH	oklch(52.65% 0.124 256.2)
XYZ	xyz(14.7119, 14.4725, 43.6046)
Luminance	0.1447 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BB1 #B17C36

analogous

#36A9B1 #366BB1 #3E36B1

triadic

#366BB1 #B1366B #6BB136

tetradic

#366BB1 #B136A9 #B17C36 #36B13E

square

#366BB1 #B136A9 #B17C36 #36B13E

split-complementary

#366BB1 #B13E36 #A9B136

monochromatic

#193253 #284F82 #366BB1 #588ACC #87ABDA

Accessibility & contrast

On white

5.39

#366BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#366BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BB1

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BB1	#FFFFFF	#000000	##FFFFFF
##366BB1	1.00	5.39	3.89	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B70B4

Deuteranopia (green-blind)

#3865B0

Tritanopia (blue-blind)

#007B85

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #366bb1;
/* rgb */ color: rgb(54, 107, 177);
/* oklch */ color: oklch(52.6% 0.124 256.2);

Tailwind

colors: {
  custom: {
    50: '#7b94c9',
    500: '#366bb1',
    950: '#000000',
  },
}

SCSS

$custom: #366bb1;
$custom-light: #7b94c9;
$custom-dark: #000000;

JSON

{
  "hex": "#366bb1",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 177
  },
  "hsl": {
    "h": 214.146,
    "s": 53.247,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52646,
    "c": 0.12441,
    "h": 256.2
  },
  "luminance": 0.14474
}

Semantic roles & 50–950 ramp

primary

#366BB1

secondary

#C4A67F

accent

#9E4BDD

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #366BB1

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

Preview Lab → · Contrast checker → · Palette generator →