#557FCD#557FCD

#557FCD is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.2% C 0.128 H 261.9°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#557FCD
RGB	rgb(85, 127, 205)
HSL	hsl(219, 55%, 57%)
HSV	hsv(219, 59%, 80%)
CMYK	cmyk(58.5%, 38%, 0%, 19.6%)
CIE-LAB	lab(53.51, 9.01, -44.78)
CIE-LCH	lch(53.51, 45.68, 281.38°)
OKLab	oklab(60.2% -0.0182 -0.127)
OKLCH	oklch(60.2% 0.128 261.9)
XYZ	xyz(22.3513, 21.5159, 60.7209)
Luminance	0.2152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FCD #CDA355

analogous

#55BBCD #557FCD #6755CD

triadic

#557FCD #CD557F #7FCD55

tetradic

#557FCD #CD55BB #CDA355 #55CD67

square

#557FCD #CD55BB #CDA355 #55CD67

split-complementary

#557FCD #CD6755 #BBCD55

monochromatic

#264682 #3460B1 #557FCD #84A3DB #B4C6E9

Accessibility & contrast

On white

3.96

#557FCD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#557FCD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FCD

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FCD	#FFFFFF	#000000	##000000
##557FCD	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E86D0

Deuteranopia (green-blind)

#4E7BCB

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557fcd;
/* rgb */ color: rgb(85, 127, 205);
/* oklch */ color: oklch(60.2% 0.128 261.9);

Tailwind

colors: {
  custom: {
    50: '#8ea3dc',
    500: '#557fcd',
    950: '#000000',
  },
}

SCSS

$custom: #557fcd;
$custom-light: #8ea3dc;
$custom-dark: #000000;

JSON

{
  "hex": "#557fcd",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 205
  },
  "hsl": {
    "h": 219,
    "s": 54.545,
    "l": 56.863
  },
  "oklch": {
    "l": 0.60202,
    "c": 0.12829,
    "h": 261.9
  },
  "luminance": 0.21518
}

Semantic roles & 50–950 ramp

primary

#557FCD

secondary

#D7C6A6

accent

#AA4ADE

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #557FCD

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

Preview Lab → · Contrast checker → · Palette generator →