#557CCE#557CCE

#557CCE is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.6% C 0.133 H 263.7°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#557CCE
RGB	rgb(85, 124, 206)
HSL	hsl(221, 55%, 57%)
HSV	hsv(221, 59%, 81%)
CMYK	cmyk(58.7%, 39.8%, 0%, 19.2%)
CIE-LAB	lab(52.73, 11.16, -46.58)
CIE-LCH	lch(52.73, 47.90, 283.48°)
OKLab	oklab(59.62% -0.0147 -0.1323)
OKLCH	oklch(59.62% 0.133 263.7)
XYZ	xyz(22.0907, 20.8010, 61.2314)
Luminance	0.2080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CCE #CEA755

analogous

#55B9CE #557CCE #6B55CE

triadic

#557CCE #CE557C #7CCE55

tetradic

#557CCE #CE55B9 #CEA755 #55CE6B

square

#557CCE #CE55B9 #CEA755 #55CE6B

split-complementary

#557CCE #CE6B55 #B9CE55

monochromatic

#264483 #335CB2 #557CCE #85A1DC #B4C5E9

Accessibility & contrast

On white

4.07

#557CCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#557CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CCE

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CCE	#FFFFFF	#000000	##000000
##557CCE	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5984D1

Deuteranopia (green-blind)

#4979CC

Tritanopia (blue-blind)

#008E9B

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557cce;
/* rgb */ color: rgb(85, 124, 206);
/* oklch */ color: oklch(59.6% 0.133 263.7);

Tailwind

colors: {
  custom: {
    50: '#8ea1dd',
    500: '#557cce',
    950: '#000000',
  },
}

SCSS

$custom: #557cce;
$custom-light: #8ea1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#557cce",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 206
  },
  "hsl": {
    "h": 220.661,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59617,
    "c": 0.13313,
    "h": 263.7
  },
  "luminance": 0.20803
}

Semantic roles & 50–950 ramp

primary

#557CCE

secondary

#D8C8A7

accent

#AE49DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #557CCE

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

Preview Lab → · Contrast checker → · Palette generator →