#557FD2#557FD2

#557FD2 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.5% C 0.135 H 262.7°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#557FD2
RGB	rgb(85, 127, 210)
HSL	hsl(220, 58%, 58%)
HSV	hsv(220, 60%, 82%)
CMYK	cmyk(59.5%, 39.5%, 0%, 17.6%)
CIE-LAB	lab(53.77, 10.67, -47.19)
CIE-LCH	lch(53.77, 48.38, 282.74°)
OKLab	oklab(60.49% -0.0171 -0.1341)
OKLCH	oklch(60.49% 0.135 262.7)
XYZ	xyz(22.9645, 21.7612, 63.9504)
Luminance	0.2176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FD2 #D2A855

analogous

#55BED2 #557FD2 #6955D2

triadic

#557FD2 #D2557F #7FD255

tetradic

#557FD2 #D255BE #D2A855 #55D269

square

#557FD2 #D255BE #D2A855 #55D269

split-complementary

#557FD2 #D26955 #BED255

monochromatic

#244688 #315FB9 #557FD2 #85A3DF #B6C8EC

Accessibility & contrast

On white

3.92

#557FD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#557FD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FD2

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FD2	#FFFFFF	#000000	##000000
##557FD2	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)

#5B87D5

Deuteranopia (green-blind)

#4A7BD0

Tritanopia (blue-blind)

#00929E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557fd2;
/* rgb */ color: rgb(85, 127, 210);
/* oklch */ color: oklch(60.5% 0.135 262.7);

Tailwind

colors: {
  custom: {
    50: '#8fa3e0',
    500: '#557fd2',
    950: '#000000',
  },
}

SCSS

$custom: #557fd2;
$custom-light: #8fa3e0;
$custom-dark: #000000;

JSON

{
  "hex": "#557fd2",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 210
  },
  "hsl": {
    "h": 219.84,
    "s": 58.14,
    "l": 57.843
  },
  "oklch": {
    "l": 0.60492,
    "c": 0.13515,
    "h": 262.7
  },
  "luminance": 0.21763
}

Semantic roles & 50–950 ramp

primary

#557FD2

secondary

#DACAA8

accent

#AD46E1

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #557FD2

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

Preview Lab → · Contrast checker → · Palette generator →