#366EC7#366EC7

#366EC7 is a mid, vivid blue. Relative luminance 0.161; OKLCH L 54.7% C 0.151 H 259.4°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#366EC7
RGB	rgb(54, 110, 199)
HSL	hsl(217, 57%, 50%)
HSV	hsv(217, 73%, 78%)
CMYK	cmyk(72.9%, 44.7%, 0%, 22%)
CIE-LAB	lab(47.05, 12.15, -51.73)
CIE-LCH	lch(47.05, 53.14, 283.22°)
OKLab	oklab(54.73% -0.0278 -0.1481)
OKLCH	oklch(54.73% 0.151 259.4)
XYZ	xyz(17.4023, 16.0577, 56.2041)
Luminance	0.1606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EC7 #C78F36

analogous

#36B6C7 #366EC7 #4736C7

triadic

#366EC7 #C7366E #6EC736

tetradic

#366EC7 #C736B6 #C78F36 #36C747

square

#366EC7 #C736B6 #C78F36 #36C747

split-complementary

#366EC7 #C74736 #B6C736

monochromatic

#1C3967 #295397 #366EC7 #6590D5 #95B3E2

Accessibility & contrast

On white

4.99

#366EC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#366EC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EC7

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EC7	#FFFFFF	#000000	##FFFFFF
##366EC7	1.00	4.99	4.21	4.99
#FFFFFF	4.99	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4177CA

Deuteranopia (green-blind)

#2469C5

Tritanopia (blue-blind)

#008391

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #366ec7;
/* rgb */ color: rgb(54, 110, 199);
/* oklch */ color: oklch(54.7% 0.151 259.4);

Tailwind

colors: {
  custom: {
    50: '#7f97d8',
    500: '#366ec7',
    950: '#000000',
  },
}

SCSS

$custom: #366ec7;
$custom-light: #7f97d8;
$custom-dark: #000000;

JSON

{
  "hex": "#366ec7",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 199
  },
  "hsl": {
    "h": 216.828,
    "s": 57.312,
    "l": 49.608
  },
  "oklch": {
    "l": 0.54726,
    "c": 0.15073,
    "h": 259.4
  },
  "luminance": 0.1606
}

Semantic roles & 50–950 ramp

primary

#366EC7

secondary

#CEB48B

accent

#A547E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366EC7

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

Preview Lab → · Contrast checker → · Palette generator →