#3F5DCE#3F5DCE

#3F5DCE is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.1% C 0.178 H 268.3°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DCE
RGB	rgb(63, 93, 206)
HSL	hsl(227, 59%, 53%)
HSV	hsv(227, 69%, 81%)
CMYK	cmyk(69.4%, 54.9%, 0%, 19.2%)
CIE-LAB	lab(43.27, 26.79, -61.83)
CIE-LCH	lch(43.27, 67.38, 293.43°)
OKLab	oklab(52.1% -0.0052 -0.178)
OKLCH	oklch(52.1% 0.178 268.3)
XYZ	xyz(17.1010, 13.3400, 60.0542)
Luminance	0.1334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DCE #CEB03F

analogous

#3FA4CE #3F5DCE #693FCE

triadic

#3F5DCE #CE3F5D #5DCE3F

tetradic

#3F5DCE #CE3FA4 #CEB03F #3FCE69

square

#3F5DCE #CE3FA4 #CEB03F #3FCE69

split-complementary

#3F5DCE #CE693F #A4CE3F

monochromatic

#1E3075 #2A44A6 #3F5DCE #7086DA #A1AFE7

Accessibility & contrast

On white

5.72

#3F5DCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3F5DCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DCE

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DCE	#FFFFFF	#000000	##FFFFFF
##3F5DCE	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD2

Deuteranopia (green-blind)

#0060CC

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f5dce;
/* rgb */ color: rgb(63, 93, 206);
/* oklch */ color: oklch(52.1% 0.178 268.3);

Tailwind

colors: {
  custom: {
    50: '#858ade',
    500: '#3f5dce',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dce;
$custom-light: #858ade;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dce",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 206
  },
  "hsl": {
    "h": 227.413,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.52098,
    "c": 0.17805,
    "h": 268.3
  },
  "luminance": 0.13342
}

Semantic roles & 50–950 ramp

primary

#3F5DCE

secondary

#D3C695

accent

#C245E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F5DCE

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

Preview Lab → · Contrast checker → · Palette generator →