#3157BD#3157BD

#3157BD is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.9% C 0.166 H 265.3°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#3157BD
RGB	rgb(49, 87, 189)
HSL	hsl(224, 59%, 47%)
HSV	hsv(224, 74%, 74%)
CMYK	cmyk(74.1%, 54%, 0%, 25.9%)
CIE-LAB	lab(39.82, 22.56, -57.60)
CIE-LCH	lch(39.82, 61.86, 291.39°)
OKLab	oklab(48.93% -0.0138 -0.1659)
OKLCH	oklch(48.93% 0.166 265.3)
XYZ	xyz(13.8569, 11.1420, 49.5546)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157BD #BD9731

analogous

#319DBD #3157BD #5131BD

triadic

#3157BD #BD3157 #57BD31

tetradic

#3157BD #BD319D #BD9731 #31BD51

square

#3157BD #BD319D #BD9731 #31BD51

split-complementary

#3157BD #BD5131 #9DBD31

monochromatic

#182A5C #24418C #3157BD #5879D4 #88A0E0

Accessibility & contrast

On white

6.50

#3157BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3157BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157BD

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157BD	#FFFFFF	#000000	##FFFFFF
##3157BD	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0265C1

Deuteranopia (green-blind)

#0058BB

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3157bd;
/* rgb */ color: rgb(49, 87, 189);
/* oklch */ color: oklch(48.9% 0.166 265.3);

Tailwind

colors: {
  custom: {
    50: '#7c85d2',
    500: '#3157bd',
    950: '#000000',
  },
}

SCSS

$custom: #3157bd;
$custom-light: #7c85d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3157bd",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 189
  },
  "hsl": {
    "h": 223.714,
    "s": 58.824,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48933,
    "c": 0.16648,
    "h": 265.3
  },
  "luminance": 0.11143
}

Semantic roles & 50–950 ramp

primary

#3157BD

secondary

#CAB680

accent

#B846E2

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3157BD

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

Preview Lab → · Contrast checker → · Palette generator →