#557DDC#557DDC

#557DDC is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.7% C 0.151 H 265.0°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#557DDC
RGB	rgb(85, 125, 220)
HSL	hsl(222, 66%, 60%)
HSV	hsv(222, 61%, 86%)
CMYK	cmyk(61.4%, 43.2%, 0%, 13.7%)
CIE-LAB	lab(53.78, 15.25, -52.83)
CIE-LCH	lch(53.78, 54.99, 286.10°)
OKLab	oklab(60.67% -0.0131 -0.1506)
OKLCH	oklch(60.67% 0.151 265)
XYZ	xyz(23.9937, 21.7637, 70.6327)
Luminance	0.2177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DDC #DCB455

analogous

#55C1DC #557DDC #7055DC

triadic

#557DDC #DC557D #7DDC55

tetradic

#557DDC #DC55C1 #DCB455 #55DC70

square

#557DDC #DC55C1 #DCB455 #55DC70

split-complementary

#557DDC #DC7055 #C1DC55

monochromatic

#1F4397 #2A59CA #557DDC #88A4E6 #BBCBF1

Accessibility & contrast

On white

3.92

#557DDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#557DDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DDC

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DDC	#FFFFFF	#000000	##000000
##557DDC	1.00	3.92	5.35	5.35
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5187E0

Deuteranopia (green-blind)

#3D7BDA

Tritanopia (blue-blind)

#0092A2

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557ddc;
/* rgb */ color: rgb(85, 125, 220);
/* oklch */ color: oklch(60.7% 0.151 265.0);

Tailwind

colors: {
  custom: {
    50: '#90a2e7',
    500: '#557ddc',
    950: '#000000',
  },
}

SCSS

$custom: #557ddc;
$custom-light: #90a2e7;
$custom-dark: #000000;

JSON

{
  "hex": "#557ddc",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 220
  },
  "hsl": {
    "h": 222.222,
    "s": 65.854,
    "l": 59.804
  },
  "oklch": {
    "l": 0.60672,
    "c": 0.1512,
    "h": 265
  },
  "luminance": 0.21766
}

Semantic roles & 50–950 ramp

primary

#557DDC

secondary

#E0D1AC

accent

#B63FE9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #557DDC

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

Preview Lab → · Contrast checker → · Palette generator →