Recognised as Colour
#155D58
- #155D58
- Cyan
- Dark
- Nearest: Dark slate grey
#155D58 is a cyan with RGB values 21, 93, 88 and HSL 176°, 63%, 22%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#155D58#155D58
HEX#155D58
RGBrgb(21, 93, 88)
RGB (0–1)0.0824, 0.3647, 0.3451
RGB percentages8.2%, 36.5%, 34.5%
HSLhsl(175.8, 63.2%, 22.4%)
HSV / HSBhsv(175.8, 77.4%, 36.5%)
CMYK77.4%, 0%, 5.4%, 63.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,400,152
CSS custom property--colour: #155D58;
Brightness & contrast
Relative luminance0.08693WCAG 2.x, 0 is black and 1 is white
Perceived brightness78 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.67:1
Contrast with white7.67:1WCAG normal text: AAA
Contrast with black2.74:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#EAA2A7
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.67:1WCAG large text: AAA
Contrast with black, large text2.74:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#5D151A
Analogous#155D34, #153E5D
Triadic#58155D, #5D5815
Split complementary#5D153E, #5D3415
Tetradic#34155D, #5D151A, #3E5D15
Tints, shades & saturation
Channel breakdown
R21
G93
B88
Red21 (8.2%)
Green93 (36.5%)
Blue88 (34.5%)
Hue175.83°
Saturation (HSL)63.16%
Lightness22.35%
Dominant channelGreen
Hex per channelR 15 · G 5D · B 58
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