#3F5FA5#3F5FA5

#3F5FA5 is a mid, moderate blue. Relative luminance 0.120; OKLCH L 49.6% C 0.118 H 264.1°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FA5
RGB	rgb(63, 95, 165)
HSL	hsl(221, 45%, 45%)
HSV	hsv(221, 62%, 65%)
CMYK	cmyk(61.8%, 42.4%, 0%, 35.3%)
CIE-LAB	lab(41.15, 10.84, -41.31)
CIE-LCH	lch(41.15, 42.70, 284.70°)
OKLab	oklab(49.63% -0.0122 -0.1176)
OKLCH	oklch(49.63% 0.118 264.1)
XYZ	xyz(12.9313, 11.9567, 37.2164)
Luminance	0.1196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FA5 #A5853F

analogous

#3F92A5 #3F5FA5 #523FA5

triadic

#3F5FA5 #A53F5F #5FA53F

tetradic

#3F5FA5 #A53F92 #A5853F #3FA552

square

#3F5FA5 #A53F92 #A5853F #3FA552

split-complementary

#3F5FA5 #A5523F #92A53F

monochromatic

#1D2C4C #2E4679 #3F5FA5 #5F7EC2 #8CA2D3

Accessibility & contrast

On white

6.19

#3F5FA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#3F5FA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FA5

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FA5	#FFFFFF	#000000	##FFFFFF
##3F5FA5	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4066A8

Deuteranopia (green-blind)

#315DA4

Tritanopia (blue-blind)

#006F7A

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f5fa5;
/* rgb */ color: rgb(63, 95, 165);
/* oklch */ color: oklch(49.6% 0.118 264.1);

Tailwind

colors: {
  custom: {
    50: '#7d8cc0',
    500: '#3f5fa5',
    950: '#000000',
  },
}

SCSS

$custom: #3f5fa5;
$custom-light: #7d8cc0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5fa5",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 165
  },
  "hsl": {
    "h": 221.176,
    "s": 44.737,
    "l": 44.706
  },
  "oklch": {
    "l": 0.49627,
    "c": 0.11823,
    "h": 264.1
  },
  "luminance": 0.11958
}

Semantic roles & 50–950 ramp

primary

#3F5FA5

secondary

#BEAB82

accent

#AC53D4

background

#F8F8FB

surface

#EFF0F7

border

#CACBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3F5FA5

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

Preview Lab → · Contrast checker → · Palette generator →