black

#000000

#3F7BCB

#3F7BCB

Contrast Ratio

4.91:1

Delta E

70.05

Very Different

50:50 Mix

Color Values

Format #000000 #3F7BCB
HEX #000000 #3F7BCB
RGB 0, 0, 0 63, 123, 203
HSL 0.0, 0.0%, 0.0% 214.3, 57.4%, 52.2%
HSV 0.0, 0.0%, 0.0% 214.3, 69.0%, 79.6%
CMYK 0%, 0%, 0%, 100% 69.0%, 39.4%, 0.0%, 20.4%
OKLCH 0.0 0.0 0.0 0.5819 0.1384 256.4

Contrast & Accessibility

4.91:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #3F7BCB → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #3F7BCB

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #3F7BCB);
background: linear-gradient(135deg, #000000, #3F7BCB);

Explore Each Color

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