#577AD9#577AD9

#577AD9 is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.0% C 0.150 H 266.7°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#577AD9
RGB	rgb(87, 122, 217)
HSL	hsl(224, 63%, 60%)
HSV	hsv(224, 60%, 85%)
CMYK	cmyk(59.9%, 43.8%, 0%, 14.9%)
CIE-LAB	lab(52.90, 16.44, -52.53)
CIE-LCH	lch(52.90, 55.05, 287.38°)
OKLab	oklab(59.97% -0.0087 -0.1498)
OKLCH	oklch(59.97% 0.15 266.7)
XYZ	xyz(23.4101, 20.9531, 68.4429)
Luminance	0.2095 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AD9 #D9B657

analogous

#57BBD9 #577AD9 #7557D9

triadic

#577AD9 #D9577A #7AD957

tetradic

#577AD9 #D957BB #D9B657 #57D975

square

#577AD9 #D957BB #D9B657 #57D975

split-complementary

#577AD9 #D97557 #BBD957

monochromatic

#214094 #2D56C6 #577AD9 #89A2E4 #BBC9F0

Accessibility & contrast

On white

4.05

#577AD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#577AD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AD9

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AD9	#FFFFFF	#000000	##000000
##577AD9	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F85DD

Deuteranopia (green-blind)

#3B79D7

Tritanopia (blue-blind)

#008F9F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #577ad9;
/* rgb */ color: rgb(87, 122, 217);
/* oklch */ color: oklch(60.0% 0.150 266.7);

Tailwind

colors: {
  custom: {
    50: '#91a0e5',
    500: '#577ad9',
    950: '#000000',
  },
}

SCSS

$custom: #577ad9;
$custom-light: #91a0e5;
$custom-dark: #000000;

JSON

{
  "hex": "#577ad9",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 217
  },
  "hsl": {
    "h": 223.846,
    "s": 63.107,
    "l": 59.608
  },
  "oklch": {
    "l": 0.59971,
    "c": 0.15001,
    "h": 266.7
  },
  "luminance": 0.20955
}

Semantic roles & 50–950 ramp

primary

#577AD9

secondary

#DFD2AD

accent

#BA42E6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577AD9

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

Preview Lab → · Contrast checker → · Palette generator →