#366AB7#366AB7

#366AB7 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 52.8% C 0.134 H 258.2°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#366AB7
RGB	rgb(54, 106, 183)
HSL	hsl(216, 54%, 46%)
HSV	hsv(216, 70%, 72%)
CMYK	cmyk(70.5%, 42.1%, 0%, 28.2%)
CIE-LAB	lab(44.96, 8.78, -45.83)
CIE-LCH	lch(44.96, 46.66, 280.84°)
OKLab	oklab(52.8% -0.0273 -0.1309)
OKLCH	oklch(52.8% 0.134 258.2)
XYZ	xyz(15.2195, 14.5096, 46.7891)
Luminance	0.1451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AB7 #B78336

analogous

#36ABB7 #366AB7 #4336B7

triadic

#366AB7 #B7366A #6AB736

tetradic

#366AB7 #B736AB #B78336 #36B743

square

#366AB7 #B736AB #B78336 #36B743

split-complementary

#366AB7 #B74336 #ABB736

monochromatic

#1A3358 #284F88 #366AB7 #5B8ACF #8BACDD

Accessibility & contrast

On white

5.38

#366AB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#366AB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AB7

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AB7	#FFFFFF	#000000	##FFFFFF
##366AB7	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)

#4571BA

Deuteranopia (green-blind)

#3065B5

Tritanopia (blue-blind)

#007C87

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #366ab7;
/* rgb */ color: rgb(54, 106, 183);
/* oklch */ color: oklch(52.8% 0.134 258.2);

Tailwind

colors: {
  custom: {
    50: '#7c94cd',
    500: '#366ab7',
    950: '#000000',
  },
}

SCSS

$custom: #366ab7;
$custom-light: #7c94cd;
$custom-dark: #000000;

JSON

{
  "hex": "#366ab7",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 183
  },
  "hsl": {
    "h": 215.814,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52798,
    "c": 0.13369,
    "h": 258.2
  },
  "luminance": 0.14511
}

Semantic roles & 50–950 ramp

primary

#366AB7

secondary

#C7AB82

accent

#A24ADE

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #366AB7

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

Preview Lab → · Contrast checker → · Palette generator →