#3965C9#3965C9

#3965C9 is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.1% C 0.163 H 263.8°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#3965C9
RGB	rgb(57, 101, 201)
HSL	hsl(222, 57%, 51%)
HSV	hsv(222, 72%, 79%)
CMYK	cmyk(71.6%, 49.8%, 0%, 21.2%)
CIE-LAB	lab(44.79, 19.02, -56.50)
CIE-LCH	lch(44.79, 59.62, 288.60°)
OKLab	oklab(53.07% -0.0175 -0.1623)
OKLCH	oklch(53.07% 0.163 263.8)
XYZ	xyz(16.8799, 14.3925, 57.1354)
Luminance	0.1439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3965C9 #C99D39

analogous

#39ADC9 #3965C9 #5539C9

triadic

#3965C9 #C93965 #65C939

tetradic

#3965C9 #C939AD #C99D39 #39C955

square

#3965C9 #C939AD #C99D39 #39C955

split-complementary

#3965C9 #C95539 #ADC939

monochromatic

#1D356B #2A4D9B #3965C9 #698AD6 #99B0E3

Accessibility & contrast

On white

5.41

#3965C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#3965C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3965C9

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3965C9	#FFFFFF	#000000	##FFFFFF
##3965C9	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A71CD

Deuteranopia (green-blind)

#0064C7

Tritanopia (blue-blind)

#007D8D

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3965c9;
/* rgb */ color: rgb(57, 101, 201);
/* oklch */ color: oklch(53.1% 0.163 263.8);

Tailwind

colors: {
  custom: {
    50: '#8190da',
    500: '#3965c9',
    950: '#000000',
  },
}

SCSS

$custom: #3965c9;
$custom-light: #8190da;
$custom-dark: #000000;

JSON

{
  "hex": "#3965c9",
  "rgb": {
    "r": 57,
    "g": 101,
    "b": 201
  },
  "hsl": {
    "h": 221.667,
    "s": 57.143,
    "l": 50.588
  },
  "oklch": {
    "l": 0.53065,
    "c": 0.16324,
    "h": 263.8
  },
  "luminance": 0.14394
}

Semantic roles & 50–950 ramp

primary

#3965C9

secondary

#CFBB8F

accent

#B247E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3965C9

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

Preview Lab → · Contrast checker → · Palette generator →