#3B71BD#3B71BD

#3B71BD is a mid, vivid blue. Relative luminance 0.164; OKLCH L 54.9% C 0.132 H 257.3°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3B71BD
RGB	rgb(59, 113, 189)
HSL	hsl(215, 52%, 49%)
HSV	hsv(215, 69%, 74%)
CMYK	cmyk(68.8%, 40.2%, 0%, 25.9%)
CIE-LAB	lab(47.51, 7.35, -45.22)
CIE-LCH	lch(47.51, 45.82, 279.24°)
OKLab	oklab(54.95% -0.029 -0.1289)
OKLCH	oklch(54.95% 0.132 257.3)
XYZ	xyz(16.8907, 16.4124, 50.4120)
Luminance	0.1641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B71BD #BD873B

analogous

#3BB2BD #3B71BD #463BBD

triadic

#3B71BD #BD3B71 #71BD3B

tetradic

#3B71BD #BD3BB2 #BD873B #3BBD46

square

#3B71BD #BD3BB2 #BD873B #3BBD46

split-complementary

#3B71BD #BD463B #B2BD3B

monochromatic

#1E3960 #2C558E #3B71BD #6692CF #95B3DE

Accessibility & contrast

On white

4.90

#3B71BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#3B71BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B71BD

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B71BD	#FFFFFF	#000000	##FFFFFF
##3B71BD	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E77C0

Deuteranopia (green-blind)

#3A6BBB

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3b71bd;
/* rgb */ color: rgb(59, 113, 189);
/* oklch */ color: oklch(54.9% 0.132 257.3);

Tailwind

colors: {
  custom: {
    50: '#7f99d1',
    500: '#3b71bd',
    950: '#000000',
  },
}

SCSS

$custom: #3b71bd;
$custom-light: #7f99d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b71bd",
  "rgb": {
    "r": 59,
    "g": 113,
    "b": 189
  },
  "hsl": {
    "h": 215.077,
    "s": 52.419,
    "l": 48.627
  },
  "oklch": {
    "l": 0.54946,
    "c": 0.13212,
    "h": 257.3
  },
  "luminance": 0.16414
}

Semantic roles & 50–950 ramp

primary

#3B71BD

secondary

#C9AF8B

accent

#A04CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3B71BD

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

Preview Lab → · Contrast checker → · Palette generator →