#5158E1#5158E1

#5158E1 is a mid, highly saturated blue. Relative luminance 0.142; OKLCH L 53.7% C 0.204 H 274.9°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#5158E1
RGB	rgb(81, 88, 225)
HSL	hsl(237, 71%, 60%)
HSV	hsv(237, 64%, 88%)
CMYK	cmyk(64%, 60.9%, 0%, 11.8%)
CIE-LAB	lab(44.47, 39.07, -70.69)
CIE-LCH	lch(44.47, 80.77, 298.93°)
OKLab	oklab(53.7% 0.0175 -0.2037)
OKLCH	oklch(53.7% 0.204 274.9)
XYZ	xyz(20.4692, 14.1633, 72.8747)
Luminance	0.1416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5158E1 #E1DA51

analogous

#51A0E1 #5158E1 #9251E1

triadic

#5158E1 #E15158 #58E151

tetradic

#5158E1 #E151A0 #E1DA51 #51E192

square

#5158E1 #E151A0 #E1DA51 #51E192

split-complementary

#5158E1 #E19251 #A0E151

monochromatic

#1B219D #242CD1 #5158E1 #858AEA #B9BCF3

Accessibility & contrast

On white

5.48

#5158E1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#5158E1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5158E1

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5158E1	#FFFFFF	#000000	##FFFFFF
##5158E1	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070E5

Deuteranopia (green-blind)

#0063DE

Tritanopia (blue-blind)

#007A94

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #5158e1;
/* rgb */ color: rgb(81, 88, 225);
/* oklch */ color: oklch(53.7% 0.204 274.9);

Tailwind

colors: {
  custom: {
    50: '#9187eb',
    500: '#5158e1',
    950: '#000000',
  },
}

SCSS

$custom: #5158e1;
$custom-light: #9187eb;
$custom-dark: #000000;

JSON

{
  "hex": "#5158e1",
  "rgb": {
    "r": 81,
    "g": 88,
    "b": 225
  },
  "hsl": {
    "h": 237.083,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.53702,
    "c": 0.20441,
    "h": 274.9
  },
  "luminance": 0.14165
}

Semantic roles & 50–950 ramp

primary

#5158E1

secondary

#E3E0AB

accent

#E53AED

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5158E1

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

Preview Lab → · Contrast checker → · Palette generator →