black

#000000

#637FF4

#637FF4

Contrast Ratio

5.87:1

Delta E

87.31

Very Different

50:50 Mix

Color Values

Format #000000 #637FF4
HEX #000000 #637FF4
RGB 0, 0, 0 99, 127, 244
HSL 0.0, 0.0%, 0.0% 228.4, 86.8%, 67.3%
HSV 0.0, 0.0%, 0.0% 228.4, 59.4%, 95.7%
CMYK 0%, 0%, 0%, 100% 59.4%, 48.0%, 0.0%, 4.3%
OKLCH 0.0 0.0 0.0 0.6336 0.177 270.5

Contrast & Accessibility

5.87:1
AA Pass AA Large Pass AAA Fail AAA Large Pass

Text Readability

The quick brown fox jumps over the lazy dog

Text: #637FF4 → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #637FF4

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #637FF4);
background: linear-gradient(135deg, #000000, #637FF4);

Explore Each Color

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