#3F7AFF#3F7AFF

#3F7AFF is a mid, highly saturated blue. Relative luminance 0.222; OKLCH L 61.5% C 0.208 H 263.5°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F7AFF
RGB	rgb(63, 122, 255)
HSL	hsl(222, 100%, 62%)
HSV	hsv(222, 75%, 100%)
CMYK	cmyk(75.3%, 52.2%, 0%, 0%)
CIE-LAB	lab(54.23, 26.18, -71.65)
CIE-LCH	lch(54.23, 76.28, 290.07°)
OKLab	oklab(61.46% -0.0236 -0.2064)
OKLCH	oklch(61.46% 0.208 263.5)
XYZ	xyz(27.0530, 22.1928, 97.4462)
Luminance	0.2220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7AFF #FFC43F

analogous

#3FDAFF #3F7AFF #643FFF

triadic

#3F7AFF #FF3F7A #7AFF3F

tetradic

#3F7AFF #FF3FDA #FFC43F #3FFF64

square

#3F7AFF #FF3FDA #FFC43F #3FFF64

split-complementary

#3F7AFF #FF643F #DAFF3F

monochromatic

#003CC4 #0250FF #3F7AFF #7CA4FF #B9CFFF

Accessibility & contrast

On white

3.86

#3F7AFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#3F7AFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7AFF

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7AFF	#FFFFFF	#000000	##000000
##3F7AFF	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#158BFF

Deuteranopia (green-blind)

#0079FC

Tritanopia (blue-blind)

#009AB1

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3f7aff;
/* rgb */ color: rgb(63, 122, 255);
/* oklch */ color: oklch(61.5% 0.208 263.5);

Tailwind

colors: {
  custom: {
    50: '#8e9fff',
    500: '#3f7aff',
    950: '#000000',
  },
}

SCSS

$custom: #3f7aff;
$custom-light: #8e9fff;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7aff",
  "rgb": {
    "r": 63,
    "g": 122,
    "b": 255
  },
  "hsl": {
    "h": 221.563,
    "s": 100,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61463,
    "c": 0.20775,
    "h": 263.5
  },
  "luminance": 0.22196
}

Semantic roles & 50–950 ramp

primary

#3F7AFF

secondary

#F0DAAA

accent

#9F00E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E18

muted

#7E7E86

Preview Lab

Preview with #3F7AFF

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

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