#4155B7#4155B7

#4155B7 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.9% C 0.156 H 270.9°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#4155B7
RGB	rgb(65, 85, 183)
HSL	hsl(230, 48%, 49%)
HSV	hsv(230, 64%, 72%)
CMYK	cmyk(64.5%, 53.6%, 0%, 28.2%)
CIE-LAB	lab(39.65, 24.04, -54.33)
CIE-LCH	lch(39.65, 59.41, 293.87°)
OKLab	oklab(48.88% 0.0024 -0.156)
OKLCH	oklch(48.88% 0.156 270.9)
XYZ	xyz(13.9728, 11.0385, 46.1849)
Luminance	0.1104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4155B7 #B7A341

analogous

#4190B7 #4155B7 #6841B7

triadic

#4155B7 #B74155 #55B741

tetradic

#4155B7 #B74190 #B7A341 #41B768

square

#4155B7 #B74190 #B7A341 #41B768

split-complementary

#4155B7 #B76841 #90B741

monochromatic

#212B5D #31408A #4155B7 #6B7BCA #98A3DA

Accessibility & contrast

On white

6.55

#4155B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#4155B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4155B7

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4155B7	#FFFFFF	#000000	##FFFFFF
##4155B7	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1363BA

Deuteranopia (green-blind)

#0058B5

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4155b7;
/* rgb */ color: rgb(65, 85, 183);
/* oklch */ color: oklch(48.9% 0.156 270.9);

Tailwind

colors: {
  custom: {
    50: '#8284cd',
    500: '#4155b7',
    950: '#000000',
  },
}

SCSS

$custom: #4155b7;
$custom-light: #8284cd;
$custom-dark: #000000;

JSON

{
  "hex": "#4155b7",
  "rgb": {
    "r": 65,
    "g": 85,
    "b": 183
  },
  "hsl": {
    "h": 229.831,
    "s": 47.581,
    "l": 48.627
  },
  "oklch": {
    "l": 0.48881,
    "c": 0.156,
    "h": 270.9
  },
  "luminance": 0.1104
}

Semantic roles & 50–950 ramp

primary

#4155B7

secondary

#C6BD8E

accent

#C051D7

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #4155B7

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

Preview Lab → · Contrast checker → · Palette generator →