#3F7ADA#3F7ADA

#3F7ADA is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.9% C 0.159 H 259.7°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3F7ADA
RGB	rgb(63, 122, 218)
HSL	hsl(217, 68%, 55%)
HSV	hsv(217, 71%, 85%)
CMYK	cmyk(71.1%, 44%, 0%, 14.5%)
CIE-LAB	lab(51.88, 12.83, -54.79)
CIE-LCH	lch(51.88, 56.27, 283.18°)
OKLab	oklab(58.91% -0.0285 -0.1568)
OKLCH	oklch(58.91% 0.159 259.7)
XYZ	xyz(21.6598, 20.0355, 69.0418)
Luminance	0.2004 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7ADA #DA9F3F

analogous

#3FC8DA #3F7ADA #513FDA

triadic

#3F7ADA #DA3F7A #7ADA3F

tetradic

#3F7ADA #DA3FC8 #DA9F3F #3FDA51

square

#3F7ADA #DA3FC8 #DA9F3F #3FDA51

split-complementary

#3F7ADA #DA513F #C8DA3F

monochromatic

#1A4285 #245CB8 #3F7ADA #729EE4 #A6C1EE

Accessibility & contrast

On white

4.19

#3F7ADA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#3F7ADA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7ADA

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7ADA	#FFFFFF	#000000	##000000
##3F7ADA	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A83DE

Deuteranopia (green-blind)

#2D75D8

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7ada;
/* rgb */ color: rgb(63, 122, 218);
/* oklch */ color: oklch(58.9% 0.159 259.7);

Tailwind

colors: {
  custom: {
    50: '#869fe6',
    500: '#3f7ada',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ada;
$custom-light: #869fe6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ada",
  "rgb": {
    "r": 63,
    "g": 122,
    "b": 218
  },
  "hsl": {
    "h": 217.161,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.5891,
    "c": 0.15939,
    "h": 259.7
  },
  "luminance": 0.20038
}

Semantic roles & 50–950 ramp

primary

#3F7ADA

secondary

#DBC29A

accent

#A93DEB

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3F7ADA

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

Preview Lab → · Contrast checker → · Palette generator →