#557DD9#557DD9

#557DD9 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.5% C 0.147 H 264.7°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#557DD9
RGB	rgb(85, 125, 217)
HSL	hsl(222, 63%, 59%)
HSV	hsv(222, 61%, 85%)
CMYK	cmyk(60.8%, 42.4%, 0%, 14.9%)
CIE-LAB	lab(53.61, 14.24, -51.41)
CIE-LCH	lch(53.61, 53.34, 285.48°)
OKLab	oklab(60.49% -0.0136 -0.1465)
OKLCH	oklch(60.49% 0.147 264.7)
XYZ	xyz(23.6000, 21.6062, 68.5589)
Luminance	0.2161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DD9 #D9B155

analogous

#55BFD9 #557DD9 #6F55D9

triadic

#557DD9 #D9557D #7DD955

tetradic

#557DD9 #D955BF #D9B155 #55D96F

square

#557DD9 #D955BF #D9B155 #55D96F

split-complementary

#557DD9 #D96F55 #BFD955

monochromatic

#214393 #2C5AC5 #557DD9 #87A3E4 #B9CAEF

Accessibility & contrast

On white

3.95

#557DD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#557DD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DD9

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DD9	#FFFFFF	#000000	##000000
##557DD9	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)

#5387DD

Deuteranopia (green-blind)

#407AD7

Tritanopia (blue-blind)

#0092A0

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557dd9;
/* rgb */ color: rgb(85, 125, 217);
/* oklch */ color: oklch(60.5% 0.147 264.7);

Tailwind

colors: {
  custom: {
    50: '#90a2e5',
    500: '#557dd9',
    950: '#000000',
  },
}

SCSS

$custom: #557dd9;
$custom-light: #90a2e5;
$custom-dark: #000000;

JSON

{
  "hex": "#557dd9",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 217
  },
  "hsl": {
    "h": 221.818,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.60488,
    "c": 0.14709,
    "h": 264.7
  },
  "luminance": 0.21608
}

Semantic roles & 50–950 ramp

primary

#557DD9

secondary

#DFCFAB

accent

#B441E6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #557DD9

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

Preview Lab → · Contrast checker → · Palette generator →