#3F65A2#3F65A2

#3F65A2 is a mid, moderate blue. Relative luminance 0.130; OKLCH L 50.8% C 0.107 H 259.5°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F65A2
RGB	rgb(63, 101, 162)
HSL	hsl(217, 44%, 44%)
HSV	hsv(217, 61%, 64%)
CMYK	cmyk(61.1%, 37.7%, 0%, 36.5%)
CIE-LAB	lab(42.72, 5.97, -37.03)
CIE-LCH	lch(42.72, 37.51, 279.16°)
OKLab	oklab(50.79% -0.0195 -0.105)
OKLCH	oklch(50.79% 0.107 259.5)
XYZ	xyz(13.2229, 12.9716, 35.9824)
Luminance	0.1297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F65A2 #A27C3F

analogous

#3F97A2 #3F65A2 #4B3FA2

triadic

#3F65A2 #A23F65 #65A23F

tetradic

#3F65A2 #A23F97 #A27C3F #3FA24B

square

#3F65A2 #A23F97 #A27C3F #3FA24B

split-complementary

#3F65A2 #A24B3F #97A23F

monochromatic

#1D2E4A #2E4A76 #3F65A2 #5E84C0 #8AA5D1

Accessibility & contrast

On white

5.84

#3F65A2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#3F65A2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F65A2

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F65A2	#FFFFFF	#000000	##FFFFFF
##3F65A2	1.00	5.84	3.59	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B6AA4

Deuteranopia (green-blind)

#3E61A1

Tritanopia (blue-blind)

#00737C

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f65a2;
/* rgb */ color: rgb(63, 101, 162);
/* oklch */ color: oklch(50.8% 0.107 259.5);

Tailwind

colors: {
  custom: {
    50: '#7d90be',
    500: '#3f65a2',
    950: '#000000',
  },
}

SCSS

$custom: #3f65a2;
$custom-light: #7d90be;
$custom-dark: #000000;

JSON

{
  "hex": "#3f65a2",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 162
  },
  "hsl": {
    "h": 216.97,
    "s": 44,
    "l": 44.118
  },
  "oklch": {
    "l": 0.5079,
    "c": 0.10681,
    "h": 259.5
  },
  "luminance": 0.12973
}

Semantic roles & 50–950 ramp

primary

#3F65A2

secondary

#BCA581

accent

#A354D4

background

#F8F8FB

surface

#EFF0F6

border

#CACBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3F65A2

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

Preview Lab → · Contrast checker → · Palette generator →