#3661AA#3661AA

#3661AA is a mid, vivid blue. Relative luminance 0.122; OKLCH L 49.9% C 0.126 H 260.3°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#3661AA
RGB	rgb(54, 97, 170)
HSL	hsl(218, 52%, 44%)
HSV	hsv(218, 68%, 67%)
CMYK	cmyk(68.2%, 42.9%, 0%, 33.3%)
CIE-LAB	lab(41.59, 9.72, -43.59)
CIE-LCH	lch(41.59, 44.66, 282.57°)
OKLab	oklab(49.94% -0.0213 -0.1244)
OKLCH	oklch(49.94% 0.126 260.3)
XYZ	xyz(13.0491, 12.2346, 39.6962)
Luminance	0.1224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3661AA #AA7F36

analogous

#369BAA #3661AA #4536AA

triadic

#3661AA #AA3661 #61AA36

tetradic

#3661AA #AA369B #AA7F36 #36AA45

square

#3661AA #AA369B #AA7F36 #36AA45

split-complementary

#3661AA #AA4536 #9BAA36

monochromatic

#182C4D #27467C #3661AA #5480C9 #83A2D8

Accessibility & contrast

On white

6.09

#3661AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#3661AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3661AA

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3661AA	#FFFFFF	#000000	##FFFFFF
##3661AA	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F68AD

Deuteranopia (green-blind)

#2C5DA9

Tritanopia (blue-blind)

#00727D

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3661aa;
/* rgb */ color: rgb(54, 97, 170);
/* oklch */ color: oklch(49.9% 0.126 260.3);

Tailwind

colors: {
  custom: {
    50: '#7a8dc4',
    500: '#3661aa',
    950: '#000000',
  },
}

SCSS

$custom: #3661aa;
$custom-light: #7a8dc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3661aa",
  "rgb": {
    "r": 54,
    "g": 97,
    "b": 170
  },
  "hsl": {
    "h": 217.759,
    "s": 51.786,
    "l": 43.922
  },
  "oklch": {
    "l": 0.49943,
    "c": 0.12623,
    "h": 260.3
  },
  "luminance": 0.12236
}

Semantic roles & 50–950 ramp

primary

#3661AA

secondary

#C1A77B

accent

#A64DDB

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3661AA

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

Preview Lab → · Contrast checker → · Palette generator →