#4153BB#4153BB

#4153BB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.8% C 0.164 H 271.6°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#4153BB
RGB	rgb(65, 83, 187)
HSL	hsl(231, 48%, 49%)
HSV	hsv(231, 65%, 73%)
CMYK	cmyk(65.2%, 55.6%, 0%, 26.7%)
CIE-LAB	lab(39.41, 26.74, -57.06)
CIE-LCH	lch(39.41, 63.02, 295.11°)
OKLab	oklab(48.79% 0.0044 -0.164)
OKLCH	oklch(48.79% 0.164 271.6)
XYZ	xyz(14.2399, 10.8969, 48.3570)
Luminance	0.1090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4153BB #BBA941

analogous

#4190BB #4153BB #6C41BB

triadic

#4153BB #BB4153 #53BB41

tetradic

#4153BB #BB4190 #BBA941 #41BB6C

square

#4153BB #BB4190 #BBA941 #41BB6C

split-complementary

#4153BB #BB6C41 #90BB41

monochromatic

#212B60 #313F8E #4153BB #6D7BCC #9AA4DC

Accessibility & contrast

On white

6.60

#4153BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#4153BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4153BB

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4153BB	#FFFFFF	#000000	##FFFFFF
##4153BB	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0058B9

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4153bb;
/* rgb */ color: rgb(65, 83, 187);
/* oklch */ color: oklch(48.8% 0.164 271.6);

Tailwind

colors: {
  custom: {
    50: '#8383d0',
    500: '#4153bb',
    950: '#000000',
  },
}

SCSS

$custom: #4153bb;
$custom-light: #8383d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4153bb",
  "rgb": {
    "r": 65,
    "g": 83,
    "b": 187
  },
  "hsl": {
    "h": 231.148,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.48792,
    "c": 0.1641,
    "h": 271.6
  },
  "luminance": 0.10898
}

Semantic roles & 50–950 ramp

primary

#4153BB

secondary

#C8C090

accent

#C450D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4153BB

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

Preview Lab → · Contrast checker → · Palette generator →