#5155EC#5155EC

#5155EC is a mid, highly saturated blue. Relative luminance 0.143; OKLCH L 54.1% C 0.222 H 274.9°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#5155EC
RGB	rgb(81, 85, 236)
HSL	hsl(238, 80%, 62%)
HSV	hsv(238, 66%, 93%)
CMYK	cmyk(65.7%, 64%, 0%, 7.5%)
CIE-LAB	lab(44.66, 44.49, -76.60)
CIE-LCH	lch(44.66, 88.58, 300.15°)
OKLab	oklab(54.12% 0.0191 -0.221)
OKLCH	oklch(54.12% 0.222 274.9)
XYZ	xyz(21.7772, 14.3005, 80.9533)
Luminance	0.1430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155EC #ECE851

analogous

#51A2EC #5155EC #9B51EC

triadic

#5155EC #EC5155 #55EC51

tetradic

#5155EC #EC51A2 #ECE851 #51EC9B

square

#5155EC #EC51A2 #ECE851 #51EC9B

split-complementary

#5155EC #EC9B51 #A2EC51

monochromatic

#1317AF #1A1FE6 #5155EC #888BF2 #BFC1F8

Accessibility & contrast

On white

5.44

#5155EC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#5155EC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155EC

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155EC	#FFFFFF	#000000	##FFFFFF
##5155EC	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071F1

Deuteranopia (green-blind)

#0063E9

Tritanopia (blue-blind)

#007C99

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #5155ec;
/* rgb */ color: rgb(81, 85, 236);
/* oklch */ color: oklch(54.1% 0.222 274.9);

Tailwind

colors: {
  custom: {
    50: '#9385f3',
    500: '#5155ec',
    950: '#000000',
  },
}

SCSS

$custom: #5155ec;
$custom-light: #9385f3;
$custom-dark: #000000;

JSON

{
  "hex": "#5155ec",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 236
  },
  "hsl": {
    "h": 238.452,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.54117,
    "c": 0.22184,
    "h": 274.9
  },
  "luminance": 0.14302
}

Semantic roles & 50–950 ramp

primary

#5155EC

secondary

#E9E7B0

accent

#D709DD

background

#F9F8FF

surface

#F2EFFE

border

#CCCAD6

text

#0F0B17

muted

#7E7C85

Preview Lab

Preview with #5155EC

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

Preview Lab → · Contrast checker → · Palette generator →