black

#000000

#637DCF

#637DCF

Contrast Ratio

5.36:1

Delta E

71.74

Very Different

50:50 Mix

Color Values

Format #000000 #637DCF
HEX #000000 #637DCF
RGB 0, 0, 0 99, 125, 207
HSL 0.0, 0.0%, 0.0% 225.6, 52.9%, 60.0%
HSV 0.0, 0.0%, 0.0% 225.6, 52.2%, 81.2%
CMYK 0%, 0%, 0%, 100% 52.2%, 39.6%, 0.0%, 18.8%
OKLCH 0.0 0.0 0.0 0.607 0.1284 269.1

Contrast & Accessibility

5.36:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #637DCF → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #637DCF

Color Difference (Delta E)

71.74 Very Different
0 — Identical 5 — Similar 25 — Noticeable 100 — Very Different

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #637DCF);
background: linear-gradient(135deg, #000000, #637DCF);

Explore Each Color

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