#3655B0#3655B0

#3655B0 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.8% C 0.150 H 266.6°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#3655B0
RGB	rgb(54, 85, 176)
HSL	hsl(225, 53%, 45%)
HSV	hsv(225, 69%, 69%)
CMYK	cmyk(69.3%, 51.7%, 0%, 31%)
CIE-LAB	lab(38.58, 19.73, -51.97)
CIE-LCH	lch(38.58, 55.58, 290.79°)
OKLab	oklab(47.76% -0.009 -0.1493)
OKLCH	oklch(47.76% 0.15 266.6)
XYZ	xyz(12.6036, 10.4146, 42.4119)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3655B0 #B09136

analogous

#3692B0 #3655B0 #5436B0

triadic

#3655B0 #B03655 #55B036

tetradic

#3655B0 #B03692 #B09136 #36B054

square

#3655B0 #B03692 #B09136 #36B054

split-complementary

#3655B0 #B05436 #92B036

monochromatic

#192852 #283E81 #3655B0 #5875CC #869CDA

Accessibility & contrast

On white

6.81

#3655B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3655B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3655B0

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3655B0	#FFFFFF	#000000	##FFFFFF
##3655B0	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D61B3

Deuteranopia (green-blind)

#0056AE

Tritanopia (blue-blind)

#006B7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3655b0;
/* rgb */ color: rgb(54, 85, 176);
/* oklch */ color: oklch(47.8% 0.150 266.6);

Tailwind

colors: {
  custom: {
    50: '#7c84c8',
    500: '#3655b0',
    950: '#000000',
  },
}

SCSS

$custom: #3655b0;
$custom-light: #7c84c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3655b0",
  "rgb": {
    "r": 54,
    "g": 85,
    "b": 176
  },
  "hsl": {
    "h": 224.754,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.47761,
    "c": 0.14953,
    "h": 266.6
  },
  "luminance": 0.10416
}

Semantic roles & 50–950 ramp

primary

#3655B0

secondary

#C4B27E

accent

#B84BDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3655B0

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

Preview Lab → · Contrast checker → · Palette generator →