black

#000000

#2181BC

#2181BC

Contrast Ratio

4.93:1

Delta E

64.51

Very Different

50:50 Mix

Color Values

Format #000000 #2181BC
HEX #000000 #2181BC
RGB 0, 0, 0 33, 129, 188
HSL 0.0, 0.0%, 0.0% 202.8, 70.1%, 43.3%
HSV 0.0, 0.0%, 0.0% 202.8, 82.4%, 73.7%
CMYK 0%, 0%, 0%, 100% 82.4%, 31.4%, 0.0%, 26.3%
OKLCH 0.0 0.0 0.0 0.578 0.124 241.7

Contrast & Accessibility

4.93:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #2181BC → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #2181BC

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #2181BC);
background: linear-gradient(135deg, #000000, #2181BC);

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