#3157CF#3157CF

#3157CF is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.4% C 0.191 H 266.2°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#3157CF
RGB	rgb(49, 87, 207)
HSL	hsl(226, 62%, 50%)
HSV	hsv(226, 76%, 81%)
CMYK	cmyk(76.3%, 58%, 0%, 18.8%)
CIE-LAB	lab(41.17, 29.26, -65.84)
CIE-LCH	lch(41.17, 72.05, 293.96°)
OKLab	oklab(50.38% -0.0127 -0.1901)
OKLCH	oklch(50.38% 0.191 266.2)
XYZ	xyz(15.9333, 11.9726, 60.4906)
Luminance	0.1197 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157CF #CFA931

analogous

#31A6CF #3157CF #5A31CF

triadic

#3157CF #CF3157 #57CF31

tetradic

#3157CF #CF31A6 #CFA931 #31CF5A

square

#3157CF #CF31A6 #CFA931 #31CF5A

split-complementary

#3157CF #CF5A31 #A6CF31

monochromatic

#192D6C #25429E #3157CF #637FDB #94A8E6

Accessibility & contrast

On white

6.19

#3157CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#3157CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157CF

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157CF	#FFFFFF	#000000	##FFFFFF
##3157CF	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D3

Deuteranopia (green-blind)

#005ACD

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3157cf;
/* rgb */ color: rgb(49, 87, 207);
/* oklch */ color: oklch(50.4% 0.191 266.2);

Tailwind

colors: {
  custom: {
    50: '#8085df',
    500: '#3157cf',
    950: '#000000',
  },
}

SCSS

$custom: #3157cf;
$custom-light: #8085df;
$custom-dark: #000000;

JSON

{
  "hex": "#3157cf",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 207
  },
  "hsl": {
    "h": 225.57,
    "s": 62.205,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50377,
    "c": 0.19055,
    "h": 266.2
  },
  "luminance": 0.11974
}

Semantic roles & 50–950 ramp

primary

#3157CF

secondary

#D1C08B

accent

#BE43E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3157CF

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

Preview Lab → · Contrast checker → · Palette generator →