#4151B5#4151B5

#4151B5 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.9% C 0.158 H 272.2°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#4151B5
RGB	rgb(65, 81, 181)
HSL	hsl(232, 47%, 48%)
HSV	hsv(232, 64%, 71%)
CMYK	cmyk(64.1%, 55.2%, 0%, 29%)
CIE-LAB	lab(38.45, 25.91, -55.09)
CIE-LCH	lch(38.45, 60.88, 295.19°)
OKLab	oklab(47.94% 0.006 -0.1582)
OKLCH	oklch(47.94% 0.158 272.2)
XYZ	xyz(13.4601, 10.3437, 44.9943)
Luminance	0.1035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4151B5 #B5A541

analogous

#418BB5 #4151B5 #6B41B5

triadic

#4151B5 #B54151 #51B541

tetradic

#4151B5 #B5418B #B5A541 #41B56B

square

#4151B5 #B5418B #B5A541 #41B56B

split-complementary

#4151B5 #B56B41 #8BB541

monochromatic

#21295B #313D88 #4151B5 #6A77C9 #97A0DA

Accessibility & contrast

On white

6.84

#4151B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#4151B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4151B5

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4151B5	#FFFFFF	#000000	##FFFFFF
##4151B5	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060B8

Deuteranopia (green-blind)

#0056B3

Tritanopia (blue-blind)

#00697B

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4151b5;
/* rgb */ color: rgb(65, 81, 181);
/* oklch */ color: oklch(47.9% 0.158 272.2);

Tailwind

colors: {
  custom: {
    50: '#8281cc',
    500: '#4151b5',
    950: '#000000',
  },
}

SCSS

$custom: #4151b5;
$custom-light: #8281cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4151b5",
  "rgb": {
    "r": 65,
    "g": 81,
    "b": 181
  },
  "hsl": {
    "h": 231.724,
    "s": 47.154,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4794,
    "c": 0.15836,
    "h": 272.2
  },
  "luminance": 0.10345
}

Semantic roles & 50–950 ramp

primary

#4151B5

secondary

#C5BD8C

accent

#C451D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4151B5

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

Preview Lab → · Contrast checker → · Palette generator →