#3F7AD9#3F7AD9

#3F7AD9 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.8% C 0.158 H 259.5°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F7AD9
RGB	rgb(63, 122, 217)
HSL	hsl(217, 67%, 55%)
HSV	hsv(217, 71%, 85%)
CMYK	cmyk(71%, 43.8%, 0%, 14.9%)
CIE-LAB	lab(51.82, 12.47, -54.32)
CIE-LCH	lch(51.82, 55.74, 282.93°)
OKLab	oklab(58.85% -0.0287 -0.1554)
OKLCH	oklch(58.85% 0.158 259.5)
XYZ	xyz(21.5293, 19.9833, 68.3547)
Luminance	0.1999 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7AD9 #D99E3F

analogous

#3FC7D9 #3F7AD9 #513FD9

triadic

#3F7AD9 #D93F7A #7AD93F

tetradic

#3F7AD9 #D93FC7 #D99E3F #3FD951

square

#3F7AD9 #D93FC7 #D99E3F #3FD951

split-complementary

#3F7AD9 #D9513F #C7D93F

monochromatic

#1A4284 #245CB7 #3F7AD9 #729DE3 #A5C1ED

Accessibility & contrast

On white

4.20

#3F7AD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#3F7AD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7AD9

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7AD9	#FFFFFF	#000000	##000000
##3F7AD9	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B83DD

Deuteranopia (green-blind)

#2E75D7

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7ad9;
/* rgb */ color: rgb(63, 122, 217);
/* oklch */ color: oklch(58.8% 0.158 259.5);

Tailwind

colors: {
  custom: {
    50: '#869fe5',
    500: '#3f7ad9',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ad9;
$custom-light: #869fe5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ad9",
  "rgb": {
    "r": 63,
    "g": 122,
    "b": 217
  },
  "hsl": {
    "h": 217.013,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.58845,
    "c": 0.15806,
    "h": 259.5
  },
  "luminance": 0.19986
}

Semantic roles & 50–950 ramp

primary

#3F7AD9

secondary

#DAC19A

accent

#A83EEA

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3F7AD9

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

Preview Lab → · Contrast checker → · Palette generator →