#3F528E#3F528E

#3F528E is a mid, moderate blue. Relative luminance 0.090; OKLCH L 45.3% C 0.101 H 268.9°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#3F528E
RGB	rgb(63, 82, 142)
HSL	hsl(226, 39%, 40%)
HSV	hsv(226, 56%, 56%)
CMYK	cmyk(55.6%, 42.3%, 0%, 44.3%)
CIE-LAB	lab(36.07, 11.20, -35.58)
CIE-LCH	lch(36.07, 37.30, 287.48°)
OKLab	oklab(45.28% -0.002 -0.101)
OKLCH	oklch(45.28% 0.101 268.9)
XYZ	xyz(9.9481, 9.0436, 26.8073)
Luminance	0.0904 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F528E #8E7B3F

analogous

#3F798E #3F528E #543F8E

triadic

#3F528E #8E3F52 #528E3F

tetradic

#3F528E #8E3F79 #8E7B3F #3F8E54

square

#3F528E #8E3F79 #8E7B3F #3F8E54

split-complementary

#3F528E #8E543F #798E3F

monochromatic

#192139 #2C3A64 #3F528E #566DB4 #8191C7

Accessibility & contrast

On white

7.48

#3F528E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#3F528E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F528E

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F528E	#FFFFFF	#000000	##FFFFFF
##3F528E	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395990

Deuteranopia (green-blind)

#30528D

Tritanopia (blue-blind)

#155F69

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f528e;
/* rgb */ color: rgb(63, 82, 142);
/* oklch */ color: oklch(45.3% 0.101 268.9);

Tailwind

colors: {
  custom: {
    50: '#7a82af',
    500: '#3f528e',
    950: '#000000',
  },
}

SCSS

$custom: #3f528e;
$custom-light: #7a82af;
$custom-dark: #000000;

JSON

{
  "hex": "#3f528e",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 142
  },
  "hsl": {
    "h": 225.57,
    "s": 38.537,
    "l": 40.196
  },
  "oklch": {
    "l": 0.45284,
    "c": 0.10098,
    "h": 268.9
  },
  "luminance": 0.09044
}

Semantic roles & 50–950 ramp

primary

#3F528E

secondary

#B1A378

accent

#B259CE

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #3F528E

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

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