#577ED4#577ED4

#577ED4 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.5% C 0.138 H 264.3°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#577ED4
RGB	rgb(87, 126, 212)
HSL	hsl(221, 59%, 59%)
HSV	hsv(221, 59%, 83%)
CMYK	cmyk(59%, 40.6%, 0%, 16.9%)
CIE-LAB	lab(53.71, 12.34, -48.42)
CIE-LCH	lch(53.71, 49.97, 284.29°)
OKLab	oklab(60.5% -0.0138 -0.1376)
OKLCH	oklch(60.5% 0.138 264.3)
XYZ	xyz(23.2709, 21.6995, 65.2367)
Luminance	0.2170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577ED4 #D4AD57

analogous

#57BCD4 #577ED4 #6E57D4

triadic

#577ED4 #D4577E #7ED457

tetradic

#577ED4 #D457BC #D4AD57 #57D46E

square

#577ED4 #D457BC #D4AD57 #57D46E

split-complementary

#577ED4 #D46E57 #BCD457

monochromatic

#24458D #305CBD #577ED4 #88A3E0 #B8C9ED

Accessibility & contrast

On white

3.93

#577ED4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#577ED4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577ED4

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577ED4	#FFFFFF	#000000	##000000
##577ED4	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5986D7

Deuteranopia (green-blind)

#487BD2

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577ed4;
/* rgb */ color: rgb(87, 126, 212);
/* oklch */ color: oklch(60.5% 0.138 264.3);

Tailwind

colors: {
  custom: {
    50: '#90a3e2',
    500: '#577ed4',
    950: '#000000',
  },
}

SCSS

$custom: #577ed4;
$custom-light: #90a3e2;
$custom-dark: #000000;

JSON

{
  "hex": "#577ed4",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 212
  },
  "hsl": {
    "h": 221.28,
    "s": 59.242,
    "l": 58.627
  },
  "oklch": {
    "l": 0.60503,
    "c": 0.13834,
    "h": 264.3
  },
  "luminance": 0.21701
}

Semantic roles & 50–950 ramp

primary

#577ED4

secondary

#DCCDAB

accent

#B145E2

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #577ED4

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

Preview Lab → · Contrast checker → · Palette generator →