black

#000000

#1F737F

#1F737F

Contrast Ratio

3.82:1

Delta E

50.56

Very Different

50:50 Mix

Color Values

Format #000000 #1F737F
HEX #000000 #1F737F
RGB 0, 0, 0 31, 115, 127
HSL 0.0, 0.0%, 0.0% 187.5, 60.8%, 31.0%
HSV 0.0, 0.0%, 0.0% 187.5, 75.6%, 49.8%
CMYK 0%, 0%, 0%, 100% 75.6%, 9.4%, 0.0%, 50.2%
OKLCH 0.0 0.0 0.0 0.5125 0.0787 209.0

Contrast & Accessibility

3.82:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #1F737F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #1F737F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #1F737F);
background: linear-gradient(135deg, #000000, #1F737F);

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