#4155BB#4155BB

#4155BB is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.2% C 0.162 H 270.9°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#4155BB
RGB	rgb(65, 85, 187)
HSL	hsl(230, 48%, 49%)
HSV	hsv(230, 65%, 73%)
CMYK	cmyk(65.2%, 54.5%, 0%, 26.7%)
CIE-LAB	lab(39.93, 25.45, -56.22)
CIE-LCH	lch(39.93, 61.71, 294.36°)
OKLab	oklab(49.18% 0.0026 -0.1615)
OKLCH	oklch(49.18% 0.162 270.9)
XYZ	xyz(14.3951, 11.2074, 48.4087)
Luminance	0.1121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4155BB #BBA741

analogous

#4192BB #4155BB #6A41BB

triadic

#4155BB #BB4155 #55BB41

tetradic

#4155BB #BB4192 #BBA741 #41BB6A

square

#4155BB #BB4192 #BBA741 #41BB6A

split-complementary

#4155BB #BB6A41 #92BB41

monochromatic

#212C60 #31408E #4155BB #6D7DCC #9AA5DC

Accessibility & contrast

On white

6.48

#4155BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#4155BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4155BB

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4155BB	#FFFFFF	#000000	##FFFFFF
##4155BB	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0664BF

Deuteranopia (green-blind)

#0059B9

Tritanopia (blue-blind)

#006D80

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4155bb;
/* rgb */ color: rgb(65, 85, 187);
/* oklch */ color: oklch(49.2% 0.162 270.9);

Tailwind

colors: {
  custom: {
    50: '#8384d0',
    500: '#4155bb',
    950: '#000000',
  },
}

SCSS

$custom: #4155bb;
$custom-light: #8384d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4155bb",
  "rgb": {
    "r": 65,
    "g": 85,
    "b": 187
  },
  "hsl": {
    "h": 230.164,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.49183,
    "c": 0.16155,
    "h": 270.9
  },
  "luminance": 0.11209
}

Semantic roles & 50–950 ramp

primary

#4155BB

secondary

#C8BF90

accent

#C250D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4155BB

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

Preview Lab → · Contrast checker → · Palette generator →