#577ADA#577ADA

#577ADA is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.0% C 0.151 H 266.8°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#577ADA
RGB	rgb(87, 122, 218)
HSL	hsl(224, 64%, 60%)
HSV	hsv(224, 60%, 85%)
CMYK	cmyk(60.1%, 44%, 0%, 14.5%)
CIE-LAB	lab(52.96, 16.78, -53.01)
CIE-LCH	lch(52.96, 55.60, 287.56°)
OKLab	oklab(60.03% -0.0085 -0.1511)
OKLCH	oklch(60.03% 0.151 266.8)
XYZ	xyz(23.5406, 21.0053, 69.1300)
Luminance	0.2101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577ADA #DAB757

analogous

#57BCDA #577ADA #7557DA

triadic

#577ADA #DA577A #7ADA57

tetradic

#577ADA #DA57BC #DAB757 #57DA75

square

#577ADA #DA57BC #DAB757 #57DA75

split-complementary

#577ADA #DA7557 #BCDA57

monochromatic

#214096 #2C56C8 #577ADA #89A2E5 #BBC9F0

Accessibility & contrast

On white

4.04

#577ADA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#577ADA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577ADA

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577ADA	#FFFFFF	#000000	##000000
##577ADA	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E85DE

Deuteranopia (green-blind)

#3A79D8

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #577ada;
/* rgb */ color: rgb(87, 122, 218);
/* oklch */ color: oklch(60.0% 0.151 266.8);

Tailwind

colors: {
  custom: {
    50: '#91a0e6',
    500: '#577ada',
    950: '#000000',
  },
}

SCSS

$custom: #577ada;
$custom-light: #91a0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#577ada",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 218
  },
  "hsl": {
    "h": 223.969,
    "s": 63.902,
    "l": 59.804
  },
  "oklch": {
    "l": 0.60033,
    "c": 0.15138,
    "h": 266.8
  },
  "luminance": 0.21007
}

Semantic roles & 50–950 ramp

primary

#577ADA

secondary

#E0D2AD

accent

#BB41E7

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577ADA

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

Preview Lab → · Contrast checker → · Palette generator →