#3F5ACC#3F5ACC

#3F5ACC is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.4% C 0.179 H 269.1°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F5ACC
RGB	rgb(63, 90, 204)
HSL	hsl(229, 58%, 52%)
HSV	hsv(229, 69%, 80%)
CMYK	cmyk(69.1%, 55.9%, 0%, 20%)
CIE-LAB	lab(42.35, 27.99, -62.17)
CIE-LCH	lch(42.35, 68.18, 294.24°)
OKLab	oklab(51.36% -0.0028 -0.179)
OKLCH	oklch(51.36% 0.179 269.1)
XYZ	xyz(16.6014, 12.7271, 58.6967)
Luminance	0.1273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5ACC #CCB13F

analogous

#3FA0CC #3F5ACC #6B3FCC

triadic

#3F5ACC #CC3F5A #5ACC3F

tetradic

#3F5ACC #CC3FA0 #CCB13F #3FCC6B

square

#3F5ACC #CC3FA0 #CCB13F #3FCC6B

split-complementary

#3F5ACC #CC6B3F #A0CC3F

monochromatic

#1E2E72 #2B42A3 #3F5ACC #6F84D9 #A0ADE6

Accessibility & contrast

On white

5.92

#3F5ACC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3F5ACC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5ACC

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5ACC	#FFFFFF	#000000	##FFFFFF
##3F5ACC	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD0

Deuteranopia (green-blind)

#005ECA

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5acc;
/* rgb */ color: rgb(63, 90, 204);
/* oklch */ color: oklch(51.4% 0.179 269.1);

Tailwind

colors: {
  custom: {
    50: '#8588dc',
    500: '#3f5acc',
    950: '#000000',
  },
}

SCSS

$custom: #3f5acc;
$custom-light: #8588dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5acc",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 204
  },
  "hsl": {
    "h": 228.511,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5136,
    "c": 0.17904,
    "h": 269.1
  },
  "luminance": 0.12729
}

Semantic roles & 50–950 ramp

primary

#3F5ACC

secondary

#D2C695

accent

#C447E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F5ACC

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

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