#557FCF#557FCF

#557FCF is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.3% C 0.131 H 262.2°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#557FCF
RGB	rgb(85, 127, 207)
HSL	hsl(219, 56%, 57%)
HSV	hsv(219, 59%, 81%)
CMYK	cmyk(58.9%, 38.6%, 0%, 18.8%)
CIE-LAB	lab(53.61, 9.67, -45.75)
CIE-LCH	lch(53.61, 46.76, 281.94°)
OKLab	oklab(60.32% -0.0177 -0.1298)
OKLCH	oklch(60.32% 0.131 262.2)
XYZ	xyz(22.5943, 21.6131, 62.0005)
Luminance	0.2162 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FCF #CFA555

analogous

#55BCCF #557FCF #6855CF

triadic

#557FCF #CF557F #7FCF55

tetradic

#557FCF #CF55BC #CFA555 #55CF68

square

#557FCF #CF55BC #CFA555 #55CF68

split-complementary

#557FCF #CF6855 #BCCF55

monochromatic

#254684 #335FB4 #557FCF #85A3DC #B4C7EA

Accessibility & contrast

On white

3.95

#557FCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#557FCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FCF

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

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

#5D86D2

Deuteranopia (green-blind)

#4D7BCD

Tritanopia (blue-blind)

#00919D

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557fcf;
/* rgb */ color: rgb(85, 127, 207);
/* oklch */ color: oklch(60.3% 0.131 262.2);

Tailwind

colors: {
  custom: {
    50: '#8ea3de',
    500: '#557fcf',
    950: '#000000',
  },
}

SCSS

$custom: #557fcf;
$custom-light: #8ea3de;
$custom-dark: #000000;

JSON

{
  "hex": "#557fcf",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 207
  },
  "hsl": {
    "h": 219.344,
    "s": 55.963,
    "l": 57.255
  },
  "oklch": {
    "l": 0.60317,
    "c": 0.13104,
    "h": 262.2
  },
  "luminance": 0.21615
}

Semantic roles & 50–950 ramp

primary

#557FCF

secondary

#D9C8A7

accent

#AB49DF

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #557FCF

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

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