#3B71CA#3B71CA

#3B71CA is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.8% C 0.150 H 259.9°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3B71CA
RGB	rgb(59, 113, 202)
HSL	hsl(217, 57%, 51%)
HSV	hsv(217, 71%, 79%)
CMYK	cmyk(70.8%, 44.1%, 0%, 20.8%)
CIE-LAB	lab(48.26, 12.07, -51.49)
CIE-LCH	lch(48.26, 52.89, 283.19°)
OKLab	oklab(55.77% -0.0263 -0.1473)
OKLCH	oklch(55.77% 0.15 259.9)
XYZ	xyz(18.3656, 17.0024, 58.1796)
Luminance	0.1700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B71CA #CA943B

analogous

#3BB8CA #3B71CA #4C3BCA

triadic

#3B71CA #CA3B71 #71CA3B

tetradic

#3B71CA #CA3BB8 #CA943B #3BCA4C

square

#3B71CA #CA3BB8 #CA943B #3BCA4C

split-complementary

#3B71CA #CA4C3B #B8CA3B

monochromatic

#1E3C6D #2B569D #3B71CA #6B94D7 #9BB7E4

Accessibility & contrast

On white

4.77

#3B71CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3B71CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B71CA

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B71CA	#FFFFFF	#000000	##FFFFFF
##3B71CA	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#457ACD

Deuteranopia (green-blind)

#2A6CC8

Tritanopia (blue-blind)

#008693

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3b71ca;
/* rgb */ color: rgb(59, 113, 202);
/* oklch */ color: oklch(55.8% 0.150 259.9);

Tailwind

colors: {
  custom: {
    50: '#8299db',
    500: '#3b71ca',
    950: '#000000',
  },
}

SCSS

$custom: #3b71ca;
$custom-light: #8299db;
$custom-dark: #000000;

JSON

{
  "hex": "#3b71ca",
  "rgb": {
    "r": 59,
    "g": 113,
    "b": 202
  },
  "hsl": {
    "h": 217.343,
    "s": 57.43,
    "l": 51.176
  },
  "oklch": {
    "l": 0.55772,
    "c": 0.14967,
    "h": 259.9
  },
  "luminance": 0.17004
}

Semantic roles & 50–950 ramp

primary

#3B71CA

secondary

#D0B891

accent

#A747E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3B71CA

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

Preview Lab → · Contrast checker → · Palette generator →