Recognised as Colour
#128A89
- #128A89
- Cyan
- Dark
- Nearest: Dark cyan
#128A89 is a cyan with RGB values 18, 138, 137 and HSL 180°, 77%, 31%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Dark cyan.
Colour values
#128A89#128A89
HEX#128A89
RGBrgb(18, 138, 137)
RGB (0–1)0.0706, 0.5412, 0.5373
RGB percentages7.1%, 54.1%, 53.7%
HSLhsl(179.5, 76.9%, 30.6%)
HSV / HSBhsv(179.5, 87%, 54.1%)
CMYK87%, 0%, 0.7%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,215,113
CSS custom property--colour: #128A89;
Brightness & contrast
Relative luminance0.20112WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.02:1
Contrast with white4.18:1WCAG normal text: Fail
Contrast with black5.02:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#ED7576
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.18:1WCAG large text: AA
Contrast with black, large text5.02:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#8A1213
Analogous#128A4D, #124F8A
Triadic#89128A, #8A8912
Split complementary#8A124F, #8A4D12
Tetradic#4D128A, #8A1213, #4F8A12
Tints, shades & saturation
Channel breakdown
R18
G138
B137
Red18 (7.1%)
Green138 (54.1%)
Blue137 (53.7%)
Hue179.5°
Saturation (HSL)76.92%
Lightness30.59%
Dominant channelGreen
Hex per channelR 12 · G 8A · B 89
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nerdulate something else
Nothing in mind? Surprise me · today’s page