#3650BB#3650BB

#3650BB is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.6% C 0.171 H 268.7°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#3650BB
RGB	rgb(54, 80, 187)
HSL	hsl(228, 55%, 47%)
HSV	hsv(228, 71%, 73%)
CMYK	cmyk(71.1%, 57.2%, 0%, 26.7%)
CIE-LAB	lab(38.04, 27.04, -59.31)
CIE-LCH	lch(38.04, 65.19, 294.50°)
OKLab	oklab(47.61% -0.004 -0.1709)
OKLCH	oklch(47.61% 0.171 268.7)
XYZ	xyz(13.3565, 10.1081, 48.2512)
Luminance	0.1011 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3650BB #BBA136

analogous

#3692BB #3650BB #5F36BB

triadic

#3650BB #BB3650 #50BB36

tetradic

#3650BB #BB3692 #BBA136 #36BB5F

square

#3650BB #BB3692 #BBA136 #36BB5F

split-complementary

#3650BB #BB5F36 #92BB36

monochromatic

#1B275C #283C8C #3650BB #5E74D0 #8D9DDE

Accessibility & contrast

On white

6.95

#3650BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#3650BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3650BB

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3650BB	#FFFFFF	#000000	##FFFFFF
##3650BB	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BF

Deuteranopia (green-blind)

#0054B9

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3650bb;
/* rgb */ color: rgb(54, 80, 187);
/* oklch */ color: oklch(47.6% 0.171 268.7);

Tailwind

colors: {
  custom: {
    50: '#7e80d0',
    500: '#3650bb',
    950: '#000000',
  },
}

SCSS

$custom: #3650bb;
$custom-light: #7e80d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3650bb",
  "rgb": {
    "r": 54,
    "g": 80,
    "b": 187
  },
  "hsl": {
    "h": 228.271,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.47607,
    "c": 0.171,
    "h": 268.7
  },
  "luminance": 0.10109
}

Semantic roles & 50–950 ramp

primary

#3650BB

secondary

#C9BB84

accent

#C149DF

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3650BB

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

Preview Lab → · Contrast checker → · Palette generator →