#577DE5#577DE5

#577DE5 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.3% C 0.163 H 266.6°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#577DE5
RGB	rgb(87, 125, 229)
HSL	hsl(224, 73%, 62%)
HSV	hsv(224, 62%, 90%)
CMYK	cmyk(62%, 45.4%, 0%, 10.2%)
CIE-LAB	lab(54.39, 18.64, -56.88)
CIE-LCH	lch(54.39, 59.86, 288.14°)
OKLab	oklab(61.34% -0.0098 -0.1625)
OKLCH	oklch(61.34% 0.163 266.6)
XYZ	xyz(25.4021, 22.3484, 77.0886)
Luminance	0.2235 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DE5 #E5BF57

analogous

#57C4E5 #577DE5 #7857E5

triadic

#577DE5 #E5577D #7DE557

tetradic

#577DE5 #E557C4 #E5BF57 #57E578

square

#577DE5 #E557C4 #E5BF57 #57E578

split-complementary

#577DE5 #E57857 #C4E557

monochromatic

#1A40A8 #2254DD #577DE5 #8CA6ED #C1CFF5

Accessibility & contrast

On white

3.84

#577DE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#577DE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DE5

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DE5	#FFFFFF	#000000	##000000
##577DE5	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B89E9

Deuteranopia (green-blind)

#337CE3

Tritanopia (blue-blind)

#0095A6

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #577de5;
/* rgb */ color: rgb(87, 125, 229);
/* oklch */ color: oklch(61.3% 0.163 266.6);

Tailwind

colors: {
  custom: {
    50: '#93a2ee',
    500: '#577de5',
    950: '#000000',
  },
}

SCSS

$custom: #577de5;
$custom-light: #93a2ee;
$custom-dark: #000000;

JSON

{
  "hex": "#577de5",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 229
  },
  "hsl": {
    "h": 223.944,
    "s": 73.196,
    "l": 61.961
  },
  "oklch": {
    "l": 0.61342,
    "c": 0.16279,
    "h": 266.6
  },
  "luminance": 0.22351
}

Semantic roles & 50–950 ramp

primary

#577DE5

secondary

#E6D8B2

accent

#A110D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577DE5

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

Preview Lab → · Contrast checker → · Palette generator →