#3F528C#3F528C

#3F528C is a mid, moderate blue. Relative luminance 0.090; OKLCH L 45.2% C 0.098 H 268.6°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#3F528C
RGB	rgb(63, 82, 140)
HSL	hsl(225, 38%, 40%)
HSV	hsv(225, 55%, 55%)
CMYK	cmyk(55%, 41.4%, 0%, 45.1%)
CIE-LAB	lab(35.95, 10.51, -34.54)
CIE-LCH	lch(35.95, 36.11, 286.93°)
OKLab	oklab(45.16% -0.0024 -0.0979)
OKLCH	oklch(45.16% 0.098 268.6)
XYZ	xyz(9.7993, 8.9841, 26.0236)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F528C #8C793F

analogous

#3F788C #3F528C #533F8C

triadic

#3F528C #8C3F52 #528C3F

tetradic

#3F528C #8C3F78 #8C793F #3F8C53

square

#3F528C #8C3F78 #8C793F #3F8C53

split-complementary

#3F528C #8C533F #788C3F

monochromatic

#192138 #2C3962 #3F528C #556CB3 #8091C6

Accessibility & contrast

On white

7.51

#3F528C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3F528C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F528C

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F528C	#FFFFFF	#000000	##FFFFFF
##3F528C	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A588E

Deuteranopia (green-blind)

#31518B

Tritanopia (blue-blind)

#185F68

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f528c;
/* rgb */ color: rgb(63, 82, 140);
/* oklch */ color: oklch(45.2% 0.098 268.6);

Tailwind

colors: {
  custom: {
    50: '#7a82ae',
    500: '#3f528c',
    950: '#000000',
  },
}

SCSS

$custom: #3f528c;
$custom-light: #7a82ae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f528c",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 140
  },
  "hsl": {
    "h": 225.195,
    "s": 37.931,
    "l": 39.804
  },
  "oklch": {
    "l": 0.45159,
    "c": 0.09795,
    "h": 268.6
  },
  "luminance": 0.08985
}

Semantic roles & 50–950 ramp

primary

#3F528C

secondary

#B0A277

accent

#B15ACE

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #3F528C

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

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