#557CCC#557CCC

#557CCC is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.5% C 0.130 H 263.3°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#557CCC
RGB	rgb(85, 124, 204)
HSL	hsl(220, 54%, 57%)
HSV	hsv(220, 58%, 80%)
CMYK	cmyk(58.3%, 39.2%, 0%, 20%)
CIE-LAB	lab(52.62, 10.50, -45.61)
CIE-LCH	lch(52.62, 46.81, 282.96°)
OKLab	oklab(59.5% -0.0151 -0.1295)
OKLCH	oklch(59.5% 0.13 263.3)
XYZ	xyz(21.8493, 20.7044, 59.9600)
Luminance	0.2071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CCC #CCA555

analogous

#55B8CC #557CCC #6A55CC

triadic

#557CCC #CC557C #7CCC55

tetradic

#557CCC #CC55B8 #CCA555 #55CC6A

square

#557CCC #CC55B8 #CCA555 #55CC6A

split-complementary

#557CCC #CC6A55 #B8CC55

monochromatic

#264480 #355DAF #557CCC #84A0DA #B3C5E8

Accessibility & contrast

On white

4.08

#557CCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#557CCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CCC

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CCC	#FFFFFF	#000000	##000000
##557CCC	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A83CF

Deuteranopia (green-blind)

#4A79CA

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557ccc;
/* rgb */ color: rgb(85, 124, 204);
/* oklch */ color: oklch(59.5% 0.130 263.3);

Tailwind

colors: {
  custom: {
    50: '#8ea1dc',
    500: '#557ccc',
    950: '#000000',
  },
}

SCSS

$custom: #557ccc;
$custom-light: #8ea1dc;
$custom-dark: #000000;

JSON

{
  "hex": "#557ccc",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 204
  },
  "hsl": {
    "h": 220.336,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.595,
    "c": 0.13036,
    "h": 263.3
  },
  "luminance": 0.20706
}

Semantic roles & 50–950 ramp

primary

#557CCC

secondary

#D7C7A6

accent

#AD4BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #557CCC

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

Preview Lab → · Contrast checker → · Palette generator →