#3157D0#3157D0

#3157D0 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.5% C 0.192 H 266.2°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#3157D0
RGB	rgb(49, 87, 208)
HSL	hsl(226, 63%, 50%)
HSV	hsv(226, 76%, 82%)
CMYK	cmyk(76.4%, 58.2%, 0%, 18.4%)
CIE-LAB	lab(41.25, 29.63, -66.29)
CIE-LCH	lch(41.25, 72.61, 294.08°)
OKLab	oklab(50.46% -0.0127 -0.1914)
OKLCH	oklch(50.46% 0.192 266.2)
XYZ	xyz(16.0560, 12.0216, 61.1365)
Luminance	0.1202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157D0 #D0AA31

analogous

#31A7D0 #3157D0 #5A31D0

triadic

#3157D0 #D03157 #57D031

tetradic

#3157D0 #D031A7 #D0AA31 #31D05A

square

#3157D0 #D031A7 #D0AA31 #31D05A

split-complementary

#3157D0 #D05A31 #A7D031

monochromatic

#192D6E #24429F #3157D0 #6380DB #95A8E7

Accessibility & contrast

On white

6.17

#3157D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#3157D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157D0

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157D0	#FFFFFF	#000000	##FFFFFF
##3157D0	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D4

Deuteranopia (green-blind)

#005ACE

Tritanopia (blue-blind)

#00758B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3157d0;
/* rgb */ color: rgb(49, 87, 208);
/* oklch */ color: oklch(50.5% 0.192 266.2);

Tailwind

colors: {
  custom: {
    50: '#8185df',
    500: '#3157d0',
    950: '#000000',
  },
}

SCSS

$custom: #3157d0;
$custom-light: #8185df;
$custom-dark: #000000;

JSON

{
  "hex": "#3157d0",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 208
  },
  "hsl": {
    "h": 225.66,
    "s": 62.846,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5046,
    "c": 0.19186,
    "h": 266.2
  },
  "luminance": 0.12023
}

Semantic roles & 50–950 ramp

primary

#3157D0

secondary

#D2C18B

accent

#BF42E6

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3157D0

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

Preview Lab → · Contrast checker → · Palette generator →