#577AD6#577AD6

#577AD6 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.8% C 0.146 H 266.4°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#577AD6
RGB	rgb(87, 122, 214)
HSL	hsl(223, 61%, 59%)
HSV	hsv(223, 59%, 84%)
CMYK	cmyk(59.3%, 43%, 0%, 16.1%)
CIE-LAB	lab(52.73, 15.44, -51.11)
CIE-LCH	lch(52.73, 53.39, 286.81°)
OKLab	oklab(59.79% -0.0092 -0.1456)
OKLCH	oklch(59.79% 0.146 266.4)
XYZ	xyz(23.0235, 20.7984, 66.4065)
Luminance	0.2080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AD6 #D6B357

analogous

#57BAD6 #577AD6 #7457D6

triadic

#577AD6 #D6577A #7AD657

tetradic

#577AD6 #D657BA #D6B357 #57D674

square

#577AD6 #D657BA #D6B357 #57D674

split-complementary

#577AD6 #D67457 #BAD657

monochromatic

#234190 #2F57C1 #577AD6 #88A1E2 #B9C8EE

Accessibility & contrast

On white

4.07

#577AD6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#577AD6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AD6

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AD6	#FFFFFF	#000000	##000000
##577AD6	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5184DA

Deuteranopia (green-blind)

#3F78D4

Tritanopia (blue-blind)

#008F9D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #577ad6;
/* rgb */ color: rgb(87, 122, 214);
/* oklch */ color: oklch(59.8% 0.146 266.4);

Tailwind

colors: {
  custom: {
    50: '#91a0e3',
    500: '#577ad6',
    950: '#000000',
  },
}

SCSS

$custom: #577ad6;
$custom-light: #91a0e3;
$custom-dark: #000000;

JSON

{
  "hex": "#577ad6",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 214
  },
  "hsl": {
    "h": 223.465,
    "s": 60.766,
    "l": 59.02
  },
  "oklch": {
    "l": 0.59786,
    "c": 0.14587,
    "h": 266.4
  },
  "luminance": 0.208
}

Semantic roles & 50–950 ramp

primary

#577AD6

secondary

#DDD0AB

accent

#B844E4

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #577AD6

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

Preview Lab → · Contrast checker → · Palette generator →