#3F5FA6#3F5FA6

#3F5FA6 is a mid, moderate blue. Relative luminance 0.120; OKLCH L 49.7% C 0.120 H 264.2°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FA6
RGB	rgb(63, 95, 166)
HSL	hsl(221, 45%, 45%)
HSV	hsv(221, 62%, 65%)
CMYK	cmyk(62%, 42.8%, 0%, 34.9%)
CIE-LAB	lab(41.21, 11.19, -41.81)
CIE-LCH	lch(41.21, 43.28, 284.99°)
OKLab	oklab(49.69% -0.012 -0.1191)
OKLCH	oklch(49.69% 0.12 264.2)
XYZ	xyz(13.0227, 11.9932, 37.6976)
Luminance	0.1199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FA6 #A6863F

analogous

#3F93A6 #3F5FA6 #523FA6

triadic

#3F5FA6 #A63F5F #5FA63F

tetradic

#3F5FA6 #A63F93 #A6863F #3FA652

square

#3F5FA6 #A63F93 #A6863F #3FA652

split-complementary

#3F5FA6 #A6523F #93A63F

monochromatic

#1D2C4D #2E467A #3F5FA6 #607EC3 #8CA2D3

Accessibility & contrast

On white

6.18

#3F5FA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#3F5FA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FA6

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FA6	#FFFFFF	#000000	##FFFFFF
##3F5FA6	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F66A9

Deuteranopia (green-blind)

#305DA5

Tritanopia (blue-blind)

#006F7A

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f5fa6;
/* rgb */ color: rgb(63, 95, 166);
/* oklch */ color: oklch(49.7% 0.120 264.2);

Tailwind

colors: {
  custom: {
    50: '#7e8cc1',
    500: '#3f5fa6',
    950: '#000000',
  },
}

SCSS

$custom: #3f5fa6;
$custom-light: #7e8cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5fa6",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 166
  },
  "hsl": {
    "h": 221.359,
    "s": 44.978,
    "l": 44.902
  },
  "oklch": {
    "l": 0.4969,
    "c": 0.11968,
    "h": 264.2
  },
  "luminance": 0.11994
}

Semantic roles & 50–950 ramp

primary

#3F5FA6

secondary

#BEAC83

accent

#AC53D5

background

#F8F8FB

surface

#EFF0F7

border

#CACBD0

text

#0B0C12

muted

#7C7D81

Preview Lab

Preview with #3F5FA6

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

Preview Lab → · Contrast checker → · Palette generator →