#3F5B97#3F5B97

#3F5B97 is a mid, moderate blue. Relative luminance 0.108; OKLCH L 47.9% C 0.103 H 264.0°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F5B97
RGB	rgb(63, 91, 151)
HSL	hsl(221, 41%, 42%)
HSV	hsv(221, 58%, 59%)
CMYK	cmyk(58.3%, 39.7%, 0%, 40.8%)
CIE-LAB	lab(39.19, 8.49, -36.06)
CIE-LCH	lch(39.19, 37.04, 283.25°)
OKLab	oklab(47.86% -0.0107 -0.1023)
OKLCH	oklch(47.86% 0.103 264)
XYZ	xyz(11.3750, 10.7724, 30.7520)
Luminance	0.1077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5B97 #977B3F

analogous

#3F8797 #3F5B97 #4F3F97

triadic

#3F5B97 #973F5B #5B973F

tetradic

#3F5B97 #973F87 #977B3F #3F974F

square

#3F5B97 #973F87 #977B3F #3F974F

split-complementary

#3F5B97 #974F3F #87973F

monochromatic

#1B2741 #2D416C #3F5B97 #5978BA #859BCC

Accessibility & contrast

On white

6.66

#3F5B97 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3F5B97 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5B97

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5B97	#FFFFFF	#000000	##FFFFFF
##3F5B97	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#426199

Deuteranopia (green-blind)

#375996

Tritanopia (blue-blind)

#006871

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f5b97;
/* rgb */ color: rgb(63, 91, 151);
/* oklch */ color: oklch(47.9% 0.103 264.0);

Tailwind

colors: {
  custom: {
    50: '#7b89b6',
    500: '#3f5b97',
    950: '#000000',
  },
}

SCSS

$custom: #3f5b97;
$custom-light: #7b89b6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5b97",
  "rgb": {
    "r": 63,
    "g": 91,
    "b": 151
  },
  "hsl": {
    "h": 220.909,
    "s": 41.121,
    "l": 41.961
  },
  "oklch": {
    "l": 0.47861,
    "c": 0.10283,
    "h": 264
  },
  "luminance": 0.10773
}

Semantic roles & 50–950 ramp

primary

#3F5B97

secondary

#B6A47C

accent

#AA57D1

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #3F5B97

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

Preview Lab → · Contrast checker → · Palette generator →