#577AF2#577AF2

#577AF2 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.6% C 0.184 H 268.3°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#577AF2
RGB	rgb(87, 122, 242)
HSL	hsl(226, 86%, 65%)
HSV	hsv(226, 64%, 95%)
CMYK	cmyk(64%, 49.6%, 0%, 5.1%)
CIE-LAB	lab(54.40, 24.87, -64.13)
CIE-LCH	lch(54.40, 68.78, 291.20°)
OKLab	oklab(61.6% -0.0053 -0.1838)
OKLCH	oklch(61.6% 0.184 268.3)
XYZ	xyz(26.9115, 22.3537, 86.8837)
Luminance	0.2236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AF2 #F2CF57

analogous

#57C7F2 #577AF2 #8257F2

triadic

#577AF2 #F2577A #7AF257

tetradic

#577AF2 #F257C7 #F2CF57 #57F282

square

#577AF2 #F257C7 #F2CF57 #57F282

split-complementary

#577AF2 #F28257 #C7F257

monochromatic

#0F37C0 #1E4DEE #577AF2 #90A7F6 #C9D4FB

Accessibility & contrast

On white

3.84

#577AF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#577AF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AF2

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AF2	#FFFFFF	#000000	##000000
##577AF2	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)

#3689F6

Deuteranopia (green-blind)

#007BF0

Tritanopia (blue-blind)

#0096AB

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #577af2;
/* rgb */ color: rgb(87, 122, 242);
/* oklch */ color: oklch(61.6% 0.184 268.3);

Tailwind

colors: {
  custom: {
    50: '#95a0f7',
    500: '#577af2',
    950: '#000000',
  },
}

SCSS

$custom: #577af2;
$custom-light: #95a0f7;
$custom-dark: #000000;

JSON

{
  "hex": "#577af2",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 242
  },
  "hsl": {
    "h": 226.452,
    "s": 85.635,
    "l": 64.51
  },
  "oklch": {
    "l": 0.61601,
    "c": 0.18391,
    "h": 268.3
  },
  "luminance": 0.22356
}

Semantic roles & 50–950 ramp

primary

#577AF2

secondary

#EDE1B8

accent

#B003E2

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0F0E17

muted

#7E7E85

Preview Lab

Preview with #577AF2

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

Preview Lab → · Contrast checker → · Palette generator →