#5155E4#5155E4

#5155E4 is a mid, highly saturated blue. Relative luminance 0.138; OKLCH L 53.4% C 0.212 H 275.3°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#5155E4
RGB	rgb(81, 85, 228)
HSL	hsl(238, 73%, 61%)
HSV	hsv(238, 64%, 89%)
CMYK	cmyk(64.5%, 62.7%, 0%, 10.6%)
CIE-LAB	lab(44.01, 41.87, -73.14)
CIE-LCH	lch(44.01, 84.27, 299.79°)
OKLab	oklab(53.44% 0.0197 -0.2109)
OKLCH	oklch(53.44% 0.212 275.3)
XYZ	xyz(20.6408, 13.8460, 74.9685)
Luminance	0.1385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155E4 #E4E051

analogous

#519FE4 #5155E4 #9651E4

triadic

#5155E4 #E45155 #55E451

tetradic

#5155E4 #E4519F #E4E051 #51E496

square

#5155E4 #E4519F #E4E051 #51E496

split-complementary

#5155E4 #E49651 #9FE451

monochromatic

#191DA2 #2126D7 #5155E4 #8689EC #BBBDF4

Accessibility & contrast

On white

5.57

#5155E4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#5155E4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155E4

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155E4	#FFFFFF	#000000	##FFFFFF
##5155E4	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FE9

Deuteranopia (green-blind)

#0062E1

Tritanopia (blue-blind)

#007995

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #5155e4;
/* rgb */ color: rgb(81, 85, 228);
/* oklch */ color: oklch(53.4% 0.212 275.3);

Tailwind

colors: {
  custom: {
    50: '#9285ee',
    500: '#5155e4',
    950: '#000000',
  },
}

SCSS

$custom: #5155e4;
$custom-light: #9285ee;
$custom-dark: #000000;

JSON

{
  "hex": "#5155e4",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 228
  },
  "hsl": {
    "h": 238.367,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.53441,
    "c": 0.21178,
    "h": 275.3
  },
  "luminance": 0.13848
}

Semantic roles & 50–950 ramp

primary

#5155E4

secondary

#E4E3AC

accent

#D010D5

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5155E4

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

Preview Lab → · Contrast checker → · Palette generator →