#3F5ACE#3F5ACE

#3F5ACE is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.5% C 0.182 H 269.1°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#3F5ACE
RGB	rgb(63, 90, 206)
HSL	hsl(229, 59%, 53%)
HSV	hsv(229, 69%, 81%)
CMYK	cmyk(69.4%, 56.3%, 0%, 19.2%)
CIE-LAB	lab(42.50, 28.70, -63.08)
CIE-LCH	lch(42.50, 69.31, 294.46°)
OKLab	oklab(51.52% -0.0028 -0.1817)
OKLCH	oklch(51.52% 0.182 269.1)
XYZ	xyz(16.8428, 12.8237, 59.9681)
Luminance	0.1283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5ACE #CEB33F

analogous

#3FA2CE #3F5ACE #6B3FCE

triadic

#3F5ACE #CE3F5A #5ACE3F

tetradic

#3F5ACE #CE3FA2 #CEB33F #3FCE6B

square

#3F5ACE #CE3FA2 #CEB33F #3FCE6B

split-complementary

#3F5ACE #CE6B3F #A2CE3F

monochromatic

#1E2E75 #2A42A6 #3F5ACE #7084DA #A1AEE7

Accessibility & contrast

On white

5.89

#3F5ACE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#3F5ACE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5ACE

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5ACE	#FFFFFF	#000000	##FFFFFF
##3F5ACE	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD2

Deuteranopia (green-blind)

#005ECC

Tritanopia (blue-blind)

#00768B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5ace;
/* rgb */ color: rgb(63, 90, 206);
/* oklch */ color: oklch(51.5% 0.182 269.1);

Tailwind

colors: {
  custom: {
    50: '#8588de',
    500: '#3f5ace',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ace;
$custom-light: #8588de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ace",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 206
  },
  "hsl": {
    "h": 228.671,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.51517,
    "c": 0.18173,
    "h": 269.1
  },
  "luminance": 0.12825
}

Semantic roles & 50–950 ramp

primary

#3F5ACE

secondary

#D3C895

accent

#C545E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F5ACE

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

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