#3F528F#3F528F

#3F528F is a mid, moderate blue. Relative luminance 0.091; OKLCH L 45.3% C 0.102 H 269.0°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#3F528F
RGB	rgb(63, 82, 143)
HSL	hsl(226, 39%, 40%)
HSV	hsv(226, 56%, 56%)
CMYK	cmyk(55.9%, 42.7%, 0%, 43.9%)
CIE-LAB	lab(36.13, 11.55, -36.09)
CIE-LCH	lch(36.13, 37.90, 287.74°)
OKLab	oklab(45.35% -0.0018 -0.1025)
OKLCH	oklch(45.35% 0.102 269)
XYZ	xyz(10.0235, 9.0738, 27.2045)
Luminance	0.0907 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F528F #8F7C3F

analogous

#3F7A8F #3F528F #543F8F

triadic

#3F528F #8F3F52 #528F3F

tetradic

#3F528F #8F3F7A #8F7C3F #3F8F54

square

#3F528F #8F3F7A #8F7C3F #3F8F54

split-complementary

#3F528F #8F543F #7A8F3F

monochromatic

#1A213A #2C3A65 #3F528F #566DB5 #8192C7

Accessibility & contrast

On white

7.46

#3F528F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#3F528F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F528F

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F528F	#FFFFFF	#000000	##FFFFFF
##3F528F	1.00	7.46	2.81	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385991

Deuteranopia (green-blind)

#2F528E

Tritanopia (blue-blind)

#145F69

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f528f;
/* rgb */ color: rgb(63, 82, 143);
/* oklch */ color: oklch(45.3% 0.102 269.0);

Tailwind

colors: {
  custom: {
    50: '#7a82b0',
    500: '#3f528f',
    950: '#000000',
  },
}

SCSS

$custom: #3f528f;
$custom-light: #7a82b0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f528f",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 143
  },
  "hsl": {
    "h": 225.75,
    "s": 38.835,
    "l": 40.392
  },
  "oklch": {
    "l": 0.45348,
    "c": 0.10249,
    "h": 269
  },
  "luminance": 0.09075
}

Semantic roles & 50–950 ramp

primary

#3F528F

secondary

#B2A478

accent

#B359CF

background

#F7F7FA

surface

#EEEEF5

border

#C9C9CF

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #3F528F

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

Preview Lab → · Contrast checker → · Palette generator →