#3F60CB#3F60CB

#3F60CB is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.5% C 0.170 H 267.3°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#3F60CB
RGB	rgb(63, 96, 203)
HSL	hsl(226, 57%, 52%)
HSV	hsv(226, 69%, 80%)
CMYK	cmyk(69%, 52.7%, 0%, 20.4%)
CIE-LAB	lab(43.85, 23.80, -59.17)
CIE-LCH	lch(43.85, 63.77, 291.91°)
OKLab	oklab(52.47% -0.0079 -0.1701)
OKLCH	oklch(52.47% 0.17 267.3)
XYZ	xyz(17.0085, 13.7326, 58.2426)
Luminance	0.1373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F60CB #CBAA3F

analogous

#3FA6CB #3F60CB #643FCB

triadic

#3F60CB #CB3F60 #60CB3F

tetradic

#3F60CB #CB3FA6 #CBAA3F #3FCB64

square

#3F60CB #CB3FA6 #CBAA3F #3FCB64

split-complementary

#3F60CB #CB643F #A6CB3F

monochromatic

#1F3271 #2C47A1 #3F60CB #6F88D8 #9FB0E5

Accessibility & contrast

On white

5.60

#3F60CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#3F60CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F60CB

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F60CB	#FFFFFF	#000000	##FFFFFF
##3F60CB	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#176ECF

Deuteranopia (green-blind)

#0062C9

Tritanopia (blue-blind)

#007A8C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3f60cb;
/* rgb */ color: rgb(63, 96, 203);
/* oklch */ color: oklch(52.5% 0.170 267.3);

Tailwind

colors: {
  custom: {
    50: '#848cdc',
    500: '#3f60cb',
    950: '#000000',
  },
}

SCSS

$custom: #3f60cb;
$custom-light: #848cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f60cb",
  "rgb": {
    "r": 63,
    "g": 96,
    "b": 203
  },
  "hsl": {
    "h": 225.857,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.52465,
    "c": 0.17028,
    "h": 267.3
  },
  "luminance": 0.13734
}

Semantic roles & 50–950 ramp

primary

#3F60CB

secondary

#D1C394

accent

#BC47E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F60CB

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

Preview Lab → · Contrast checker → · Palette generator →