#3157BF#3157BF

#3157BF is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.1% C 0.169 H 265.4°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#3157BF
RGB	rgb(49, 87, 191)
HSL	hsl(224, 59%, 47%)
HSV	hsv(224, 74%, 75%)
CMYK	cmyk(74.3%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(39.96, 23.31, -58.53)
CIE-LCH	lch(39.96, 63.00, 291.71°)
OKLab	oklab(49.09% -0.0136 -0.1686)
OKLCH	oklch(49.09% 0.169 265.4)
XYZ	xyz(14.0755, 11.2294, 50.7058)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157BF #BF9931

analogous

#319EBF #3157BF #5231BF

triadic

#3157BF #BF3157 #57BF31

tetradic

#3157BF #BF319E #BF9931 #31BF52

square

#3157BF #BF319E #BF9931 #31BF52

split-complementary

#3157BF #BF5231 #9EBF31

monochromatic

#182B5E #25418E #3157BF #597AD4 #8AA1E1

Accessibility & contrast

On white

6.47

#3157BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#3157BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157BF

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157BF	#FFFFFF	#000000	##FFFFFF
##3157BF	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C3

Deuteranopia (green-blind)

#0058BD

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3157bf;
/* rgb */ color: rgb(49, 87, 191);
/* oklch */ color: oklch(49.1% 0.169 265.4);

Tailwind

colors: {
  custom: {
    50: '#7d85d3',
    500: '#3157bf',
    950: '#000000',
  },
}

SCSS

$custom: #3157bf;
$custom-light: #7d85d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3157bf",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 223.944,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.49089,
    "c": 0.16919,
    "h": 265.4
  },
  "luminance": 0.11231
}

Semantic roles & 50–950 ramp

primary

#3157BF

secondary

#CBB781

accent

#B845E2

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3157BF

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

Preview Lab → · Contrast checker → · Palette generator →