#577EE0#577EE0

#577EE0 is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.2% C 0.155 H 265.7°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#577EE0
RGB	rgb(87, 126, 224)
HSL	hsl(223, 69%, 61%)
HSV	hsv(223, 61%, 88%)
CMYK	cmyk(61.2%, 43.7%, 0%, 12.2%)
CIE-LAB	lab(54.37, 16.35, -54.12)
CIE-LCH	lch(54.37, 56.53, 286.81°)
OKLab	oklab(61.23% -0.0116 -0.1544)
OKLCH	oklch(61.23% 0.155 265.7)
XYZ	xyz(24.8413, 22.3276, 73.5071)
Luminance	0.2233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EE0 #E0B957

analogous

#57C2E0 #577EE0 #7457E0

triadic

#577EE0 #E0577E #7EE057

tetradic

#577EE0 #E057C2 #E0B957 #57E074

square

#577EE0 #E057C2 #E0B957 #57E074

split-complementary

#577EE0 #E07457 #C2E057

monochromatic

#1D429F #2758D3 #577EE0 #8BA6EA #BECDF3

Accessibility & contrast

On white

3.84

#577EE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#577EE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EE0

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EE0	#FFFFFF	#000000	##000000
##577EE0	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)

#5189E4

Deuteranopia (green-blind)

#3C7CDE

Tritanopia (blue-blind)

#0094A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #577ee0;
/* rgb */ color: rgb(87, 126, 224);
/* oklch */ color: oklch(61.2% 0.155 265.7);

Tailwind

colors: {
  custom: {
    50: '#92a2ea',
    500: '#577ee0',
    950: '#000000',
  },
}

SCSS

$custom: #577ee0;
$custom-light: #92a2ea;
$custom-dark: #000000;

JSON

{
  "hex": "#577ee0",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 224
  },
  "hsl": {
    "h": 222.92,
    "s": 68.844,
    "l": 60.98
  },
  "oklch": {
    "l": 0.61232,
    "c": 0.15479,
    "h": 265.7
  },
  "luminance": 0.2233
}

Semantic roles & 50–950 ramp

primary

#577EE0

secondary

#E3D5B0

accent

#9B15D1

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577EE0

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

Preview Lab → · Contrast checker → · Palette generator →