#4151FF#4151FF

#4151FF is a mid, highly saturated blue. Relative luminance 0.142; OKLCH L 54.3% C 0.253 H 270.7°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4151FF
RGB	rgb(65, 81, 255)
HSL	hsl(235, 100%, 63%)
HSV	hsv(235, 75%, 100%)
CMYK	cmyk(74.5%, 68.2%, 0%, 0%)
CIE-LAB	lab(44.56, 51.31, -87.45)
CIE-LCH	lch(44.56, 101.39, 300.40°)
OKLab	oklab(54.31% 0.0029 -0.2531)
OKLCH	oklch(54.31% 0.253 270.7)
XYZ	xyz(23.1663, 14.2262, 96.1134)
Luminance	0.1423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4151FF #FFEF41

analogous

#41B0FF #4151FF #9041FF

triadic

#4151FF #FF4151 #51FF41

tetradic

#4151FF #FF41B0 #FFEF41 #41FF90

square

#4151FF #FF41B0 #FFEF41 #41FF90

split-complementary

#4151FF #FF9041 #B0FF41

monochromatic

#0011C6 #0419FF #4151FF #7E89FF #BBC1FF

Accessibility & contrast

On white

5.46

#4151FF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#4151FF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4151FF

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4151FF	#FFFFFF	#000000	##FFFFFF
##4151FF	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073FF

Deuteranopia (green-blind)

#0060FC

Tritanopia (blue-blind)

#0081A2

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4151ff;
/* rgb */ color: rgb(65, 81, 255);
/* oklch */ color: oklch(54.3% 0.253 270.7);

Tailwind

colors: {
  custom: {
    50: '#9182ff',
    500: '#4151ff',
    950: '#000000',
  },
}

SCSS

$custom: #4151ff;
$custom-light: #9182ff;
$custom-dark: #000000;

JSON

{
  "hex": "#4151ff",
  "rgb": {
    "r": 65,
    "g": 81,
    "b": 255
  },
  "hsl": {
    "h": 234.947,
    "s": 100,
    "l": 62.745
  },
  "oklch": {
    "l": 0.54307,
    "c": 0.25313,
    "h": 270.7
  },
  "luminance": 0.14229
}

Semantic roles & 50–950 ramp

primary

#4151FF

secondary

#F0EAAC

accent

#D200E6

background

#FAF8FF

surface

#F3EFFF

border

#CDCAD7

text

#0F0A18

muted

#7F7C86

Preview Lab

Preview with #4151FF

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

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