#3157A3#3157A3

#3157A3 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.0% C 0.130 H 262.5°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#3157A3
RGB	rgb(49, 87, 163)
HSL	hsl(220, 54%, 42%)
HSV	hsv(220, 70%, 64%)
CMYK	cmyk(69.9%, 46.6%, 0%, 36.1%)
CIE-LAB	lab(38.04, 12.79, -45.12)
CIE-LCH	lch(38.04, 46.90, 285.83°)
OKLab	oklab(47.01% -0.017 -0.1292)
OKLCH	oklch(47.01% 0.13 262.5)
XYZ	xyz(11.2833, 10.1126, 36.0005)
Luminance	0.1011 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157A3 #A37D31

analogous

#3190A3 #3157A3 #4431A3

triadic

#3157A3 #A33157 #57A331

tetradic

#3157A3 #A33190 #A37D31 #31A344

square

#3157A3 #A33190 #A37D31 #31A344

split-complementary

#3157A3 #A34431 #90A331

monochromatic

#152545 #233E74 #3157A3 #4973C8 #7897D6

Accessibility & contrast

On white

6.95

#3157A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#3157A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157A3

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157A3	#FFFFFF	#000000	##FFFFFF
##3157A3	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305FA6

Deuteranopia (green-blind)

#1955A1

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3157a3;
/* rgb */ color: rgb(49, 87, 163);
/* oklch */ color: oklch(47.0% 0.130 262.5);

Tailwind

colors: {
  custom: {
    50: '#7785bf',
    500: '#3157a3',
    950: '#000000',
  },
}

SCSS

$custom: #3157a3;
$custom-light: #7785bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3157a3",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 163
  },
  "hsl": {
    "h": 220,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.47014,
    "c": 0.13029,
    "h": 262.5
  },
  "luminance": 0.10114
}

Semantic roles & 50–950 ramp

primary

#3157A3

secondary

#BFA571

accent

#AC4BDD

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3157A3

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

Preview Lab → · Contrast checker → · Palette generator →