#3F7AD2#3F7AD2

#3F7AD2 is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.4% C 0.149 H 258.3°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F7AD2
RGB	rgb(63, 122, 210)
HSL	hsl(216, 62%, 54%)
HSV	hsv(216, 70%, 82%)
CMYK	cmyk(70%, 41.9%, 0%, 17.6%)
CIE-LAB	lab(51.41, 9.95, -51.01)
CIE-LCH	lch(51.41, 51.97, 281.04°)
OKLab	oklab(58.4% -0.0301 -0.1457)
OKLCH	oklch(58.4% 0.149 258.3)
XYZ	xyz(20.6381, 19.6268, 63.6610)
Luminance	0.1963 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7AD2 #D2973F

analogous

#3FC4D2 #3F7AD2 #4D3FD2

triadic

#3F7AD2 #D23F7A #7AD23F

tetradic

#3F7AD2 #D23FC4 #D2973F #3FD24D

square

#3F7AD2 #D23FC4 #D2973F #3FD24D

split-complementary

#3F7AD2 #D24D3F #C4D23F

monochromatic

#1D427A #285DAC #3F7AD2 #719CDE #A2BFE9

Accessibility & contrast

On white

4.26

#3F7AD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#3F7AD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7AD2

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7AD2	#FFFFFF	#000000	##000000
##3F7AD2	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5082D5

Deuteranopia (green-blind)

#3774D0

Tritanopia (blue-blind)

#008E9C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f7ad2;
/* rgb */ color: rgb(63, 122, 210);
/* oklch */ color: oklch(58.4% 0.149 258.3);

Tailwind

colors: {
  custom: {
    50: '#859fe0',
    500: '#3f7ad2',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ad2;
$custom-light: #859fe0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ad2",
  "rgb": {
    "r": 63,
    "g": 122,
    "b": 210
  },
  "hsl": {
    "h": 215.918,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.584,
    "c": 0.14876,
    "h": 258.3
  },
  "luminance": 0.19629
}

Semantic roles & 50–950 ramp

primary

#3F7AD2

secondary

#D6BD97

accent

#A443E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F7AD2

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

Preview Lab → · Contrast checker → · Palette generator →