#3153B5#3153B5

#3153B5 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.5% C 0.161 H 266.0°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#3153B5
RGB	rgb(49, 83, 181)
HSL	hsl(225, 57%, 45%)
HSV	hsv(225, 73%, 71%)
CMYK	cmyk(72.9%, 54.1%, 0%, 29%)
CIE-LAB	lab(38.15, 22.18, -55.61)
CIE-LCH	lch(38.15, 59.87, 291.75°)
OKLab	oklab(47.49% -0.0112 -0.1601)
OKLCH	oklch(47.49% 0.161 266)
XYZ	xyz(12.6974, 10.1743, 45.0018)
Luminance	0.1018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3153B5 #B59331

analogous

#3195B5 #3153B5 #5131B5

triadic

#3153B5 #B53153 #53B531

tetradic

#3153B5 #B53195 #B59331 #31B551

square

#3153B5 #B53195 #B59331 #31B551

split-complementary

#3153B5 #B55131 #95B531

monochromatic

#172755 #243D85 #3153B5 #5373D0 #839ADD

Accessibility & contrast

On white

6.92

#3153B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3153B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3153B5

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3153B5	#FFFFFF	#000000	##FFFFFF
##3153B5	1.00	6.92	3.04	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0360B8

Deuteranopia (green-blind)

#0054B3

Tritanopia (blue-blind)

#006B7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3153b5;
/* rgb */ color: rgb(49, 83, 181);
/* oklch */ color: oklch(47.5% 0.161 266.0);

Tailwind

colors: {
  custom: {
    50: '#7b82cc',
    500: '#3153b5',
    950: '#000000',
  },
}

SCSS

$custom: #3153b5;
$custom-light: #7b82cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3153b5",
  "rgb": {
    "r": 49,
    "g": 83,
    "b": 181
  },
  "hsl": {
    "h": 224.545,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.47491,
    "c": 0.1605,
    "h": 266
  },
  "luminance": 0.10176
}

Semantic roles & 50–950 ramp

primary

#3153B5

secondary

#C7B37B

accent

#B947E1

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3153B5

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

Preview Lab → · Contrast checker → · Palette generator →