#3B71BF#3B71BF

#3B71BF is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.1% C 0.135 H 257.8°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#3B71BF
RGB	rgb(59, 113, 191)
HSL	hsl(215, 53%, 49%)
HSV	hsv(215, 69%, 75%)
CMYK	cmyk(69.1%, 40.8%, 0%, 25.1%)
CIE-LAB	lab(47.62, 8.08, -46.20)
CIE-LCH	lch(47.62, 46.90, 279.92°)
OKLab	oklab(55.07% -0.0285 -0.1318)
OKLCH	oklch(55.07% 0.135 257.8)
XYZ	xyz(17.1093, 16.4999, 51.5632)
Luminance	0.1650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B71BF #BF893B

analogous

#3BB3BF #3B71BF #473BBF

triadic

#3B71BF #BF3B71 #71BF3B

tetradic

#3B71BF #BF3BB3 #BF893B #3BBF47

square

#3B71BF #BF3BB3 #BF893B #3BBF47

split-complementary

#3B71BF #BF473B #B3BF3B

monochromatic

#1E3A61 #2D5590 #3B71BF #6792D0 #96B4DF

Accessibility & contrast

On white

4.88

#3B71BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#3B71BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B71BF

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B71BF	#FFFFFF	#000000	##FFFFFF
##3B71BF	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D78C2

Deuteranopia (green-blind)

#386BBD

Tritanopia (blue-blind)

#00838F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3b71bf;
/* rgb */ color: rgb(59, 113, 191);
/* oklch */ color: oklch(55.1% 0.135 257.8);

Tailwind

colors: {
  custom: {
    50: '#8099d3',
    500: '#3b71bf',
    950: '#000000',
  },
}

SCSS

$custom: #3b71bf;
$custom-light: #8099d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3b71bf",
  "rgb": {
    "r": 59,
    "g": 113,
    "b": 191
  },
  "hsl": {
    "h": 215.455,
    "s": 52.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.5507,
    "c": 0.13482,
    "h": 257.8
  },
  "luminance": 0.16502
}

Semantic roles & 50–950 ramp

primary

#3B71BF

secondary

#CAB18C

accent

#A14CDC

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3B71BF

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

Preview Lab → · Contrast checker → · Palette generator →