#3F61CE#3F61CE

#3F61CE is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.9% C 0.173 H 267.2°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#3F61CE
RGB	rgb(63, 97, 206)
HSL	hsl(226, 59%, 53%)
HSV	hsv(226, 69%, 81%)
CMYK	cmyk(69.4%, 52.9%, 0%, 19.2%)
CIE-LAB	lab(44.32, 24.24, -60.13)
CIE-LCH	lch(44.32, 64.83, 291.96°)
OKLab	oklab(52.89% -0.0085 -0.1729)
OKLCH	oklch(52.89% 0.173 267.2)
XYZ	xyz(17.4613, 14.0606, 60.1743)
Luminance	0.1406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F61CE #CEAC3F

analogous

#3FA9CE #3F61CE #643FCE

triadic

#3F61CE #CE3F61 #61CE3F

tetradic

#3F61CE #CE3FA9 #CEAC3F #3FCE64

square

#3F61CE #CE3FA9 #CEAC3F #3FCE64

split-complementary

#3F61CE #CE643F #A9CE3F

monochromatic

#1E3275 #2A48A6 #3F61CE #7089DA #A1B1E7

Accessibility & contrast

On white

5.51

#3F61CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#3F61CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F61CE

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F61CE	#FFFFFF	#000000	##FFFFFF
##3F61CE	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1470D2

Deuteranopia (green-blind)

#0063CC

Tritanopia (blue-blind)

#007B8E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3f61ce;
/* rgb */ color: rgb(63, 97, 206);
/* oklch */ color: oklch(52.9% 0.173 267.2);

Tailwind

colors: {
  custom: {
    50: '#858dde',
    500: '#3f61ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f61ce;
$custom-light: #858dde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f61ce",
  "rgb": {
    "r": 63,
    "g": 97,
    "b": 206
  },
  "hsl": {
    "h": 225.734,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.52889,
    "c": 0.17312,
    "h": 267.2
  },
  "luminance": 0.14062
}

Semantic roles & 50–950 ramp

primary

#3F61CE

secondary

#D3C595

accent

#BD45E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F61CE

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

Preview Lab → · Contrast checker → · Palette generator →