#577DD7#577DD7

#577DD7 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.5% C 0.144 H 265.1°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#577DD7
RGB	rgb(87, 125, 215)
HSL	hsl(222, 62%, 59%)
HSV	hsv(222, 60%, 84%)
CMYK	cmyk(59.5%, 41.9%, 0%, 15.7%)
CIE-LAB	lab(53.60, 13.94, -50.29)
CIE-LCH	lch(53.60, 52.19, 285.50°)
OKLab	oklab(60.47% -0.0121 -0.1431)
OKLCH	oklch(60.47% 0.144 265.1)
XYZ	xyz(23.5256, 21.5978, 67.2058)
Luminance	0.2160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DD7 #D7B157

analogous

#57BDD7 #577DD7 #7157D7

triadic

#577DD7 #D7577D #7DD757

tetradic

#577DD7 #D757BD #D7B157 #57D771

square

#577DD7 #D757BD #D7B157 #57D771

split-complementary

#577DD7 #D77157 #BDD757

monochromatic

#234391 #2E5AC2 #577DD7 #88A3E3 #BACAEF

Accessibility & contrast

On white

3.95

#577DD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#577DD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DD7

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DD7	#FFFFFF	#000000	##000000
##577DD7	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5586DA

Deuteranopia (green-blind)

#437BD5

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577dd7;
/* rgb */ color: rgb(87, 125, 215);
/* oklch */ color: oklch(60.5% 0.144 265.1);

Tailwind

colors: {
  custom: {
    50: '#91a2e4',
    500: '#577dd7',
    950: '#000000',
  },
}

SCSS

$custom: #577dd7;
$custom-light: #91a2e4;
$custom-dark: #000000;

JSON

{
  "hex": "#577dd7",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 215
  },
  "hsl": {
    "h": 222.188,
    "s": 61.538,
    "l": 59.216
  },
  "oklch": {
    "l": 0.60472,
    "c": 0.14364,
    "h": 265.1
  },
  "luminance": 0.216
}

Semantic roles & 50–950 ramp

primary

#577DD7

secondary

#DECFAC

accent

#B543E5

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F15

muted

#7E7E84

Preview Lab

Preview with #577DD7

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

Preview Lab → · Contrast checker → · Palette generator →