#3F5ECE#3F5ECE

#3F5ECE is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.3% C 0.177 H 268.0°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#3F5ECE
RGB	rgb(63, 94, 206)
HSL	hsl(227, 59%, 53%)
HSV	hsv(227, 69%, 81%)
CMYK	cmyk(69.4%, 54.4%, 0%, 19.2%)
CIE-LAB	lab(43.53, 26.15, -61.40)
CIE-LCH	lch(43.53, 66.74, 293.07°)
OKLab	oklab(52.29% -0.006 -0.1767)
OKLCH	oklch(52.29% 0.177 268)
XYZ	xyz(17.1893, 13.5167, 60.0836)
Luminance	0.1352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5ECE #CEAF3F

analogous

#3FA5CE #3F5ECE #673FCE

triadic

#3F5ECE #CE3F5E #5ECE3F

tetradic

#3F5ECE #CE3FA5 #CEAF3F #3FCE67

square

#3F5ECE #CE3FA5 #CEAF3F #3FCE67

split-complementary

#3F5ECE #CE673F #A5CE3F

monochromatic

#1E3175 #2A45A6 #3F5ECE #7087DA #A1B0E7

Accessibility & contrast

On white

5.67

#3F5ECE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#3F5ECE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5ECE

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5ECE	#FFFFFF	#000000	##FFFFFF
##3F5ECE	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED2

Deuteranopia (green-blind)

#0061CC

Tritanopia (blue-blind)

#00798D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f5ece;
/* rgb */ color: rgb(63, 94, 206);
/* oklch */ color: oklch(52.3% 0.177 268.0);

Tailwind

colors: {
  custom: {
    50: '#858bde',
    500: '#3f5ece',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ece;
$custom-light: #858bde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ece",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 206
  },
  "hsl": {
    "h": 226.993,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.52294,
    "c": 0.17681,
    "h": 268
  },
  "luminance": 0.13518
}

Semantic roles & 50–950 ramp

primary

#3F5ECE

secondary

#D3C695

accent

#C045E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F5ECE

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

Preview Lab → · Contrast checker → · Palette generator →