black

#000000

#237D6F

#237D6F

Contrast Ratio

4.23:1

Delta E

55.67

Very Different

50:50 Mix

Color Values

Format #000000 #237D6F
HEX #000000 #237D6F
RGB 0, 0, 0 35, 125, 111
HSL 0.0, 0.0%, 0.0% 170.7, 56.2%, 31.4%
HSV 0.0, 0.0%, 0.0% 170.7, 72.0%, 49.0%
CMYK 0%, 0%, 0%, 100% 72.0%, 0.0%, 11.2%, 51.0%
OKLCH 0.0 0.0 0.0 0.5341 0.0855 180.2

Contrast & Accessibility

4.23:1
AA Fail AA Large Pass AAA Fail AAA Large Fail

Text Readability

The quick brown fox jumps over the lazy dog

Text: #237D6F → Background: #000000

The quick brown fox jumps over the lazy dog

Text: #000000 → Background: #237D6F

Color Difference (Delta E)

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

Gradient

Color Mixing

CSS Gradient Code

background: linear-gradient(to right, #000000, #237D6F);
background: linear-gradient(135deg, #000000, #237D6F);

Explore Each Color

Related Comparisons