#5740D9#5740D9

#5740D9 is a mid, highly saturated blue. Relative luminance 0.107; OKLCH L 49.7% C 0.221 H 281.6°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#5740D9
RGB	rgb(87, 64, 217)
HSL	hsl(249, 67%, 55%)
HSV	hsv(249, 71%, 85%)
CMYK	cmyk(59.9%, 70.5%, 0%, 14.9%)
CIE-LAB	lab(39.07, 51.25, -74.93)
CIE-LCH	lch(39.07, 90.78, 304.37°)
OKLab	oklab(49.7% 0.0444 -0.216)
OKLCH	oklch(49.7% 0.221 281.6)
XYZ	xyz(18.2843, 10.7015, 66.7343)
Luminance	0.1070 (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

#5740D9 #C2D940

analogous

#4075D9 #5740D9 #A440D9

triadic

#5740D9 #D95740 #40D957

tetradic

#5740D9 #D94075 #C2D940 #40D9A4

square

#5740D9 #D94075 #C2D940 #40D9A4

split-complementary

#5740D9 #D9A440 #75D940

monochromatic

#2A1A84 #3B24B7 #5740D9 #8473E3 #B1A6ED

Accessibility & contrast

On white

6.69

#5740D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#5740D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5740D9

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5740D9	#FFFFFF	#000000	##FFFFFF
##5740D9	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061DE

Deuteranopia (green-blind)

#0056D6

Tritanopia (blue-blind)

#006988

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #5740d9;
/* rgb */ color: rgb(87, 64, 217);
/* oklch */ color: oklch(49.7% 0.221 281.6);

Tailwind

colors: {
  custom: {
    50: '#9477e6',
    500: '#5740d9',
    950: '#000000',
  },
}

SCSS

$custom: #5740d9;
$custom-light: #9477e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5740d9",
  "rgb": {
    "r": 87,
    "g": 64,
    "b": 217
  },
  "hsl": {
    "h": 249.02,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.49698,
    "c": 0.2205,
    "h": 281.6
  },
  "luminance": 0.10703
}

Semantic roles & 50–950 ramp

primary

#5740D9

secondary

#D1DA9A

accent

#EA3ED0

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0F0916

muted

#7E7B84

Preview Lab

Preview with #5740D9

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

Preview Lab → · Contrast checker → · Palette generator →