#3157B0#3157B0

#3157B0 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.9% C 0.149 H 264.2°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#3157B0
RGB	rgb(49, 87, 176)
HSL	hsl(222, 56%, 44%)
HSV	hsv(222, 72%, 69%)
CMYK	cmyk(72.2%, 50.6%, 0%, 31%)
CIE-LAB	lab(38.90, 17.68, -51.45)
CIE-LCH	lch(38.90, 54.40, 288.96°)
OKLab	oklab(47.95% -0.0151 -0.1478)
OKLCH	oklch(47.95% 0.149 264.2)
XYZ	xyz(12.5085, 10.6026, 42.4532)
Luminance	0.1060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157B0 #B08A31

analogous

#3197B0 #3157B0 #4B31B0

triadic

#3157B0 #B03157 #57B031

tetradic

#3157B0 #B03197 #B08A31 #31B04B

square

#3157B0 #B03197 #B08A31 #31B04B

split-complementary

#3157B0 #B04B31 #97B031

monochromatic

#162850 #243F80 #3157B0 #5076CE #809BDC

Accessibility & contrast

On white

6.73

#3157B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3157B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157B0

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157B0	#FFFFFF	#000000	##FFFFFF
##3157B0	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2262B3

Deuteranopia (green-blind)

#0056AE

Tritanopia (blue-blind)

#006C7B

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3157b0;
/* rgb */ color: rgb(49, 87, 176);
/* oklch */ color: oklch(47.9% 0.149 264.2);

Tailwind

colors: {
  custom: {
    50: '#7a85c8',
    500: '#3157b0',
    950: '#000000',
  },
}

SCSS

$custom: #3157b0;
$custom-light: #7a85c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3157b0",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 176
  },
  "hsl": {
    "h": 222.047,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.47947,
    "c": 0.14857,
    "h": 264.2
  },
  "luminance": 0.10604
}

Semantic roles & 50–950 ramp

primary

#3157B0

secondary

#C5AE78

accent

#B248E0

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3157B0

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

Preview Lab → · Contrast checker → · Palette generator →