#5740E1#5740E1

#5740E1 is a mid, highly saturated blue. Relative luminance 0.111; OKLCH L 50.4% C 0.230 H 280.7°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#5740E1
RGB	rgb(87, 64, 225)
HSL	hsl(249, 73%, 57%)
HSV	hsv(249, 72%, 88%)
CMYK	cmyk(61.3%, 71.6%, 0%, 11.8%)
CIE-LAB	lab(39.79, 53.64, -78.32)
CIE-LCH	lch(39.79, 94.93, 304.41°)
OKLab	oklab(50.43% 0.0429 -0.2259)
OKLCH	oklch(50.43% 0.23 280.7)
XYZ	xyz(19.3502, 11.1278, 72.3478)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5740E1 #CAE140

analogous

#407AE1 #5740E1 #A740E1

triadic

#5740E1 #E15740 #40E157

tetradic

#5740E1 #E1407A #CAE140 #40E1A7

square

#5740E1 #E1407A #CAE140 #40E1A7

split-complementary

#5740E1 #E1A740 #7AE140

monochromatic

#281790 #371FC5 #5740E1 #8675E9 #B4AAF2

Accessibility & contrast

On white

6.51

#5740E1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#5740E1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5740E1

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5740E1	#FFFFFF	#000000	##FFFFFF
##5740E1	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063E6

Deuteranopia (green-blind)

#0058DE

Tritanopia (blue-blind)

#006C8D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #5740e1;
/* rgb */ color: rgb(87, 64, 225);
/* oklch */ color: oklch(50.4% 0.230 280.7);

Tailwind

colors: {
  custom: {
    50: '#9678ec',
    500: '#5740e1',
    950: '#000000',
  },
}

SCSS

$custom: #5740e1;
$custom-light: #9678ec;
$custom-dark: #000000;

JSON

{
  "hex": "#5740e1",
  "rgb": {
    "r": 87,
    "g": 64,
    "b": 225
  },
  "hsl": {
    "h": 248.571,
    "s": 72.851,
    "l": 56.667
  },
  "oklch": {
    "l": 0.50431,
    "c": 0.22993,
    "h": 280.7
  },
  "luminance": 0.11129
}

Semantic roles & 50–950 ramp

primary

#5740E1

secondary

#D6DF9D

accent

#F038D5

background

#FAF7FE

surface

#F3EDFD

border

#CDC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #5740E1

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

Preview Lab → · Contrast checker → · Palette generator →