#3B71C5#3B71C5

#3B71C5 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.4% C 0.143 H 259.0°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3B71C5
RGB	rgb(59, 113, 197)
HSL	hsl(217, 54%, 50%)
HSV	hsv(217, 70%, 77%)
CMYK	cmyk(70.1%, 42.6%, 0%, 22.7%)
CIE-LAB	lab(47.97, 10.25, -49.10)
CIE-LCH	lch(47.97, 50.16, 281.79°)
OKLab	oklab(55.45% -0.0273 -0.1403)
OKLCH	oklch(55.45% 0.143 259)
XYZ	xyz(17.7832, 16.7694, 55.1121)
Luminance	0.1677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B71C5 #C58F3B

analogous

#3BB6C5 #3B71C5 #4A3BC5

triadic

#3B71C5 #C53B71 #71C53B

tetradic

#3B71C5 #C53BB6 #C58F3B #3BC54A

square

#3B71C5 #C53BB6 #C58F3B #3BC54A

split-complementary

#3B71C5 #C54A3B #B6C53B

monochromatic

#1F3B67 #2C5696 #3B71C5 #6A93D3 #99B5E1

Accessibility & contrast

On white

4.82

#3B71C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#3B71C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B71C5

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B71C5	#FFFFFF	#000000	##FFFFFF
##3B71C5	1.00	4.82	4.35	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4979C8

Deuteranopia (green-blind)

#316CC3

Tritanopia (blue-blind)

#008591

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3b71c5;
/* rgb */ color: rgb(59, 113, 197);
/* oklch */ color: oklch(55.4% 0.143 259.0);

Tailwind

colors: {
  custom: {
    50: '#8199d7',
    500: '#3b71c5',
    950: '#000000',
  },
}

SCSS

$custom: #3b71c5;
$custom-light: #8199d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3b71c5",
  "rgb": {
    "r": 59,
    "g": 113,
    "b": 197
  },
  "hsl": {
    "h": 216.522,
    "s": 54.331,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55449,
    "c": 0.14292,
    "h": 259
  },
  "luminance": 0.16771
}

Semantic roles & 50–950 ramp

primary

#3B71C5

secondary

#CDB58F

accent

#A44ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3B71C5

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

Preview Lab → · Contrast checker → · Palette generator →