#3F548C#3F548C

#3F548C is a mid, moderate blue. Relative luminance 0.093; OKLCH L 45.6% C 0.095 H 267.1°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#3F548C
RGB	rgb(63, 84, 140)
HSL	hsl(224, 38%, 40%)
HSV	hsv(224, 55%, 55%)
CMYK	cmyk(55%, 40%, 0%, 45.1%)
CIE-LAB	lab(36.54, 9.21, -33.62)
CIE-LCH	lch(36.54, 34.86, 285.33°)
OKLab	oklab(45.61% -0.0048 -0.0952)
OKLCH	oklch(45.61% 0.095 267.1)
XYZ	xyz(9.9523, 9.2901, 26.0746)
Luminance	0.0929 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F548C #8C773F

analogous

#3F7B8C #3F548C #503F8C

triadic

#3F548C #8C3F54 #548C3F

tetradic

#3F548C #8C3F7B #8C773F #3F8C50

square

#3F548C #8C3F7B #8C773F #3F8C50

split-complementary

#3F548C #8C503F #7B8C3F

monochromatic

#192138 #2C3B62 #3F548C #556FB3 #8093C6

Accessibility & contrast

On white

7.35

#3F548C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#3F548C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F548C

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F548C	#FFFFFF	#000000	##FFFFFF
##3F548C	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5A8E

Deuteranopia (green-blind)

#34538B

Tritanopia (blue-blind)

#176069

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f548c;
/* rgb */ color: rgb(63, 84, 140);
/* oklch */ color: oklch(45.6% 0.095 267.1);

Tailwind

colors: {
  custom: {
    50: '#7a83ae',
    500: '#3f548c',
    950: '#000000',
  },
}

SCSS

$custom: #3f548c;
$custom-light: #7a83ae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f548c",
  "rgb": {
    "r": 63,
    "g": 84,
    "b": 140
  },
  "hsl": {
    "h": 223.636,
    "s": 37.931,
    "l": 39.804
  },
  "oklch": {
    "l": 0.45609,
    "c": 0.09532,
    "h": 267.1
  },
  "luminance": 0.09291
}

Semantic roles & 50–950 ramp

primary

#3F548C

secondary

#B0A077

accent

#AE5ACE

background

#F7F8FA

surface

#EEEFF4

border

#C9CACE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #3F548C

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

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