#3157AF#3157AF

#3157AF is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.9% C 0.147 H 264.1°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3157AF
RGB	rgb(49, 87, 175)
HSL	hsl(222, 56%, 44%)
HSV	hsv(222, 72%, 69%)
CMYK	cmyk(72%, 50.3%, 0%, 31.4%)
CIE-LAB	lab(38.83, 17.30, -50.97)
CIE-LCH	lch(38.83, 53.83, 288.75°)
OKLab	oklab(47.87% -0.0152 -0.1464)
OKLCH	oklch(47.87% 0.147 264.1)
XYZ	xyz(12.4099, 10.5632, 41.9340)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157AF #AF8931

analogous

#3196AF #3157AF #4A31AF

triadic

#3157AF #AF3157 #57AF31

tetradic

#3157AF #AF3196 #AF8931 #31AF4A

square

#3157AF #AF3196 #AF8931 #31AF4A

split-complementary

#3157AF #AF4A31 #96AF31

monochromatic

#16274F #243F7F #3157AF #4F76CE #7F9BDB

Accessibility & contrast

On white

6.75

#3157AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3157AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157AF

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157AF	#FFFFFF	#000000	##FFFFFF
##3157AF	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2362B2

Deuteranopia (green-blind)

#0056AD

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3157af;
/* rgb */ color: rgb(49, 87, 175);
/* oklch */ color: oklch(47.9% 0.147 264.1);

Tailwind

colors: {
  custom: {
    50: '#7985c7',
    500: '#3157af',
    950: '#000000',
  },
}

SCSS

$custom: #3157af;
$custom-light: #7985c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3157af",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 175
  },
  "hsl": {
    "h": 221.905,
    "s": 56.25,
    "l": 43.922
  },
  "oklch": {
    "l": 0.47873,
    "c": 0.14718,
    "h": 264.1
  },
  "luminance": 0.10565
}

Semantic roles & 50–950 ramp

primary

#3157AF

secondary

#C4AD78

accent

#B248E0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3157AF

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

Preview Lab → · Contrast checker → · Palette generator →