#3157B9#3157B9

#3157B9 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.6% C 0.161 H 265.0°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3157B9
RGB	rgb(49, 87, 185)
HSL	hsl(223, 58%, 46%)
HSV	hsv(223, 74%, 73%)
CMYK	cmyk(73.5%, 53%, 0%, 27.5%)
CIE-LAB	lab(39.53, 21.06, -55.73)
CIE-LCH	lch(39.53, 59.57, 290.70°)
OKLab	oklab(48.62% -0.0141 -0.1604)
OKLCH	oklch(48.62% 0.161 265)
XYZ	xyz(13.4287, 10.9707, 47.2994)
Luminance	0.1097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3157B9 #B99331

analogous

#319BB9 #3157B9 #4F31B9

triadic

#3157B9 #B93157 #57B931

tetradic

#3157B9 #B9319B #B99331 #31B94F

square

#3157B9 #B9319B #B99331 #31B94F

split-complementary

#3157B9 #B94F31 #9BB931

monochromatic

#172958 #244089 #3157B9 #5578D2 #869FDF

Accessibility & contrast

On white

6.57

#3157B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3157B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3157B9

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3157B9	#FFFFFF	#000000	##FFFFFF
##3157B9	1.00	6.57	3.19	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1164BC

Deuteranopia (green-blind)

#0057B7

Tritanopia (blue-blind)

#006F7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3157b9;
/* rgb */ color: rgb(49, 87, 185);
/* oklch */ color: oklch(48.6% 0.161 265.0);

Tailwind

colors: {
  custom: {
    50: '#7b85cf',
    500: '#3157b9',
    950: '#000000',
  },
}

SCSS

$custom: #3157b9;
$custom-light: #7b85cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3157b9",
  "rgb": {
    "r": 49,
    "g": 87,
    "b": 185
  },
  "hsl": {
    "h": 223.235,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.48624,
    "c": 0.16101,
    "h": 265
  },
  "luminance": 0.10972
}

Semantic roles & 50–950 ramp

primary

#3157B9

secondary

#C8B37D

accent

#B646E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3157B9

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

Preview Lab → · Contrast checker → · Palette generator →