#5153CA#5153CA

#5153CA is a mid, vivid blue. Relative luminance 0.122; OKLCH L 51.0% C 0.180 H 277.2°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#5153CA
RGB	rgb(81, 83, 202)
HSL	hsl(239, 53%, 55%)
HSV	hsv(239, 60%, 79%)
CMYK	cmyk(59.9%, 58.9%, 0%, 20.8%)
CIE-LAB	lab(41.53, 34.53, -62.30)
CIE-LCH	lch(41.53, 71.23, 299.00°)
OKLab	oklab(50.99% 0.0225 -0.179)
OKLCH	oklch(50.99% 0.18 277.2)
XYZ	xyz(17.1438, 12.1988, 57.3169)
Luminance	0.1220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5153CA #CAC851

analogous

#5190CA #5153CA #8B51CA

triadic

#5153CA #CA5153 #53CA51

tetradic

#5153CA #CA5190 #CAC851 #51CA8B

square

#5153CA #CA5190 #CAC851 #51CA8B

split-complementary

#5153CA #CA8B51 #90CA51

monochromatic

#25277B #3436AA #5153CA #8081D8 #AFB0E7

Accessibility & contrast

On white

6.10

#5153CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#5153CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5153CA

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5153CA	#FFFFFF	#000000	##FFFFFF
##5153CA	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CE

Deuteranopia (green-blind)

#005DC8

Tritanopia (blue-blind)

#007086

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #5153ca;
/* rgb */ color: rgb(81, 83, 202);
/* oklch */ color: oklch(51.0% 0.180 277.2);

Tailwind

colors: {
  custom: {
    50: '#8d83db',
    500: '#5153ca',
    950: '#000000',
  },
}

SCSS

$custom: #5153ca;
$custom-light: #8d83db;
$custom-dark: #000000;

JSON

{
  "hex": "#5153ca",
  "rgb": {
    "r": 81,
    "g": 83,
    "b": 202
  },
  "hsl": {
    "h": 239.008,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.50988,
    "c": 0.18044,
    "h": 277.2
  },
  "luminance": 0.122
}

Semantic roles & 50–950 ramp

primary

#5153CA

secondary

#D5D4A2

accent

#DA4BDD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #5153CA

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

Preview Lab → · Contrast checker → · Palette generator →