#5740E3#5740E3

#5740E3 is a mid, highly saturated blue. Relative luminance 0.112; OKLCH L 50.6% C 0.232 H 280.5°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#5740E3
RGB	rgb(87, 64, 227)
HSL	hsl(248, 74%, 57%)
HSV	hsv(248, 72%, 89%)
CMYK	cmyk(61.7%, 71.8%, 0%, 11%)
CIE-LAB	lab(39.98, 54.24, -79.16)
CIE-LCH	lch(39.98, 95.96, 304.42°)
OKLab	oklab(50.62% 0.0425 -0.2283)
OKLCH	oklch(50.62% 0.232 280.5)
XYZ	xyz(19.6246, 11.2376, 73.7931)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5740E3 #CCE340

analogous

#407BE3 #5740E3 #A840E3

triadic

#5740E3 #E35740 #40E357

tetradic

#5740E3 #E3407B #CCE340 #40E3A8

square

#5740E3 #E3407B #CCE340 #40E3A8

split-complementary

#5740E3 #E3A840 #7BE340

monochromatic

#271693 #361DC8 #5740E3 #8675EB #B5ABF3

Accessibility & contrast

On white

6.47

#5740E3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#5740E3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5740E3

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5740E3	#FFFFFF	#000000	##FFFFFF
##5740E3	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E8

Deuteranopia (green-blind)

#0058E0

Tritanopia (blue-blind)

#006D8E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #5740e3;
/* rgb */ color: rgb(87, 64, 227);
/* oklch */ color: oklch(50.6% 0.232 280.5);

Tailwind

colors: {
  custom: {
    50: '#9678ed',
    500: '#5740e3',
    950: '#000000',
  },
}

SCSS

$custom: #5740e3;
$custom-light: #9678ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5740e3",
  "rgb": {
    "r": 87,
    "g": 64,
    "b": 227
  },
  "hsl": {
    "h": 248.466,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.50616,
    "c": 0.23227,
    "h": 280.5
  },
  "luminance": 0.11239
}

Semantic roles & 50–950 ramp

primary

#5740E3

secondary

#D7E19E

accent

#F137D7

background

#FAF7FE

surface

#F3EDFD

border

#CDC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #5740E3

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

Preview Lab → · Contrast checker → · Palette generator →