#5740DB#5740DB

#5740DB is a mid, highly saturated blue. Relative luminance 0.108; OKLCH L 49.9% C 0.223 H 281.4°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#5740DB
RGB	rgb(87, 64, 219)
HSL	hsl(249, 68%, 55%)
HSV	hsv(249, 71%, 86%)
CMYK	cmyk(60.3%, 70.8%, 0%, 14.1%)
CIE-LAB	lab(39.25, 51.85, -75.79)
CIE-LCH	lch(39.25, 91.83, 304.38°)
OKLab	oklab(49.88% 0.044 -0.2185)
OKLCH	oklch(49.88% 0.223 281.4)
XYZ	xyz(18.5460, 10.8062, 68.1126)
Luminance	0.1081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5740DB #C4DB40

analogous

#4076DB #5740DB #A440DB

triadic

#5740DB #DB5740 #40DB57

tetradic

#5740DB #DB4076 #C4DB40 #40DBA4

square

#5740DB #DB4076 #C4DB40 #40DBA4

split-complementary

#5740DB #DBA440 #76DB40

monochromatic

#2A1987 #3A23BB #5740DB #8473E5 #B2A7EE

Accessibility & contrast

On white

6.64

#5740DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#5740DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5740DB

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5740DB	#FFFFFF	#000000	##FFFFFF
##5740DB	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062E0

Deuteranopia (green-blind)

#0057D8

Tritanopia (blue-blind)

#006A89

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #5740db;
/* rgb */ color: rgb(87, 64, 219);
/* oklch */ color: oklch(49.9% 0.223 281.4);

Tailwind

colors: {
  custom: {
    50: '#9577e7',
    500: '#5740db',
    950: '#000000',
  },
}

SCSS

$custom: #5740db;
$custom-light: #9577e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5740db",
  "rgb": {
    "r": 87,
    "g": 64,
    "b": 219
  },
  "hsl": {
    "h": 248.903,
    "s": 68.282,
    "l": 55.49
  },
  "oklch": {
    "l": 0.4988,
    "c": 0.22287,
    "h": 281.4
  },
  "luminance": 0.10808
}

Semantic roles & 50–950 ramp

primary

#5740DB

secondary

#D2DC9B

accent

#EB3DD1

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0F0916

muted

#7E7B84

Preview Lab

Preview with #5740DB

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

Preview Lab → · Contrast checker → · Palette generator →