#3157B8#3157B8

#3157B8 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.5% C 0.160 H 264.9°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#3157B8
RGB	rgb(49, 87, 184)
HSL	hsl(223, 58%, 46%)
HSV	hsv(223, 73%, 72%)
CMYK	cmyk(73.4%, 52.7%, 0%, 27.8%)
CIE-LAB	lab(39.46, 20.68, -55.26)
CIE-LCH	lch(39.46, 59.00, 290.52°)
OKLab	oklab(48.55% -0.0142 -0.159)
OKLCH	oklch(48.55% 0.16 264.9)
XYZ	xyz(13.3235, 10.9286, 46.7454)
Luminance	0.1093 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157B8 #B89231

analogous

#319AB8 #3157B8 #4E31B8

triadic

#3157B8 #B83157 #57B831

tetradic

#3157B8 #B8319A #B89231 #31B84E

square

#3157B8 #B8319A #B89231 #31B84E

split-complementary

#3157B8 #B84E31 #9AB831

monochromatic

#172957 #244088 #3157B8 #5578D2 #859EDE

Accessibility & contrast

On white

6.59

#3157B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3157B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157B8

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157B8	#FFFFFF	#000000	##FFFFFF
##3157B8	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1463BB

Deuteranopia (green-blind)

#0057B6

Tritanopia (blue-blind)

#006E7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3157b8;
/* rgb */ color: rgb(49, 87, 184);
/* oklch */ color: oklch(48.5% 0.160 264.9);

Tailwind

colors: {
  custom: {
    50: '#7b85ce',
    500: '#3157b8',
    950: '#000000',
  },
}

SCSS

$custom: #3157b8;
$custom-light: #7b85ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3157b8",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 184
  },
  "hsl": {
    "h": 223.111,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.48548,
    "c": 0.15964,
    "h": 264.9
  },
  "luminance": 0.1093
}

Semantic roles & 50–950 ramp

primary

#3157B8

secondary

#C8B37D

accent

#B647E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3157B8

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

Preview Lab → · Contrast checker → · Palette generator →