#4151D9#4151D9

#4151D9 is a mid, highly saturated blue. Relative luminance 0.120; OKLCH L 50.9% C 0.206 H 271.6°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#4151D9
RGB	rgb(65, 81, 217)
HSL	hsl(234, 67%, 55%)
HSV	hsv(234, 70%, 85%)
CMYK	cmyk(70%, 62.7%, 0%, 14.9%)
CIE-LAB	lab(41.24, 38.48, -71.44)
CIE-LCH	lch(41.24, 81.14, 298.31°)
OKLab	oklab(50.88% 0.0059 -0.2063)
OKLCH	oklch(50.88% 0.206 271.6)
XYZ	xyz(17.6426, 12.0167, 67.0219)
Luminance	0.1202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4151D9 #D9C941

analogous

#419DD9 #4151D9 #7D41D9

triadic

#4151D9 #D94151 #51D941

tetradic

#4151D9 #D9419D #D9C941 #41D97D

square

#4151D9 #D9419D #D9C941 #41D97D

split-complementary

#4151D9 #D97D41 #9DD941

monochromatic

#1B2685 #2534B8 #4151D9 #7480E3 #A7AEED

Accessibility & contrast

On white

6.17

#4151D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#4151D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4151D9

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4151D9	#FFFFFF	#000000	##FFFFFF
##4151D9	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068DD

Deuteranopia (green-blind)

#005AD6

Tritanopia (blue-blind)

#00748D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4151d9;
/* rgb */ color: rgb(65, 81, 217);
/* oklch */ color: oklch(50.9% 0.206 271.6);

Tailwind

colors: {
  custom: {
    50: '#8982e6',
    500: '#4151d9',
    950: '#000000',
  },
}

SCSS

$custom: #4151d9;
$custom-light: #8982e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4151d9",
  "rgb": {
    "r": 65,
    "g": 81,
    "b": 217
  },
  "hsl": {
    "h": 233.684,
    "s": 66.667,
    "l": 55.294
  },
  "oklch": {
    "l": 0.50883,
    "c": 0.20636,
    "h": 271.6
  },
  "luminance": 0.12018
}

Semantic roles & 50–950 ramp

primary

#4151D9

secondary

#DBD49B

accent

#D83EEA

background

#F9F7FE

surface

#F1EEFC

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #4151D9

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

Preview Lab → · Contrast checker → · Palette generator →