#3B71D1#3B71D1

#3B71D1 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.2% C 0.159 H 260.9°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3B71D1
RGB	rgb(59, 113, 209)
HSL	hsl(218, 62%, 53%)
HSV	hsv(218, 72%, 82%)
CMYK	cmyk(71.8%, 45.9%, 0%, 18%)
CIE-LAB	lab(48.69, 14.62, -54.81)
CIE-LCH	lch(48.69, 56.73, 284.93°)
OKLab	oklab(56.24% -0.0251 -0.1571)
OKLCH	oklch(56.24% 0.159 260.9)
XYZ	xyz(19.2133, 17.3414, 62.6439)
Luminance	0.1734 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B71D1 #D19B3B

analogous

#3BBCD1 #3B71D1 #503BD1

triadic

#3B71D1 #D13B71 #71D13B

tetradic

#3B71D1 #D13BBC #D19B3B #3BD150

square

#3B71D1 #D13BBC #D19B3B #3BD150

split-complementary

#3B71D1 #D1503B #BCD13B

monochromatic

#1C3C76 #2755A7 #3B71D1 #6D95DD #9EB9E8

Accessibility & contrast

On white

4.70

#3B71D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3B71D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B71D1

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B71D1	#FFFFFF	#000000	##FFFFFF
##3B71D1	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F7BD5

Deuteranopia (green-blind)

#1E6DCF

Tritanopia (blue-blind)

#008897

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3b71d1;
/* rgb */ color: rgb(59, 113, 209);
/* oklch */ color: oklch(56.2% 0.159 260.9);

Tailwind

colors: {
  custom: {
    50: '#8399e0',
    500: '#3b71d1',
    950: '#000000',
  },
}

SCSS

$custom: #3b71d1;
$custom-light: #8399e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b71d1",
  "rgb": {
    "r": 59,
    "g": 113,
    "b": 209
  },
  "hsl": {
    "h": 218.4,
    "s": 61.983,
    "l": 52.549
  },
  "oklch": {
    "l": 0.56236,
    "c": 0.15908,
    "h": 260.9
  },
  "luminance": 0.17344
}

Semantic roles & 50–950 ramp

primary

#3B71D1

secondary

#D4BD93

accent

#AB43E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3B71D1

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

Preview Lab → · Contrast checker → · Palette generator →