#3157A4#3157A4

#3157A4 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.1% C 0.132 H 262.7°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#3157A4
RGB	rgb(49, 87, 164)
HSL	hsl(220, 54%, 42%)
HSV	hsv(220, 70%, 64%)
CMYK	cmyk(70.1%, 47%, 0%, 35.7%)
CIE-LAB	lab(38.11, 13.17, -45.61)
CIE-LCH	lch(38.11, 47.47, 286.10°)
OKLab	oklab(47.08% -0.0168 -0.1306)
OKLCH	oklch(47.08% 0.132 262.7)
XYZ	xyz(11.3733, 10.1485, 36.4742)
Luminance	0.1015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157A4 #A47E31

analogous

#3191A4 #3157A4 #4531A4

triadic

#3157A4 #A43157 #57A431

tetradic

#3157A4 #A43191 #A47E31 #31A445

square

#3157A4 #A43191 #A47E31 #31A445

split-complementary

#3157A4 #A44531 #91A431

monochromatic

#152546 #233E75 #3157A4 #4974C9 #7998D7

Accessibility & contrast

On white

6.93

#3157A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3157A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157A4

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157A4	#FFFFFF	#000000	##FFFFFF
##3157A4	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5FA7

Deuteranopia (green-blind)

#1755A2

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3157a4;
/* rgb */ color: rgb(49, 87, 164);
/* oklch */ color: oklch(47.1% 0.132 262.7);

Tailwind

colors: {
  custom: {
    50: '#7785bf',
    500: '#3157a4',
    950: '#000000',
  },
}

SCSS

$custom: #3157a4;
$custom-light: #7785bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3157a4",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 164
  },
  "hsl": {
    "h": 220.174,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47084,
    "c": 0.13171,
    "h": 262.7
  },
  "luminance": 0.1015
}

Semantic roles & 50–950 ramp

primary

#3157A4

secondary

#BFA672

accent

#AD4ADD

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3157A4

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

Preview Lab → · Contrast checker → · Palette generator →