Recognised as Colour
#018CA1
- #018CA1
- Cyan
- Dark
- Nearest: Dark cyan
#018CA1 is a cyan with RGB values 1, 140, 161 and HSL 188°, 99%, 32%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Dark cyan.
Colour values
#018CA1#018CA1
HEX#018CA1
RGBrgb(1, 140, 161)
RGB (0–1)0.0039, 0.549, 0.6314
RGB percentages0.4%, 54.9%, 63.1%
HSLhsl(187.9, 98.8%, 31.8%)
HSV / HSBhsv(187.9, 99.4%, 63.1%)
CMYK99.4%, 13%, 0%, 36.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer101,537
CSS custom property--colour: #018CA1;
Brightness & contrast
Relative luminance0.21336WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.27:1
Contrast with white3.99:1WCAG normal text: Fail
Contrast with black5.27:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#FE735E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.99:1WCAG large text: AA
Contrast with black, large text5.27:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A11601
Analogous#01A166, #013CA1
Triadic#A1018C, #8CA101
Split complementary#A1013C, #A16601
Tetradic#6601A1, #A11601, #3CA101
Tints, shades & saturation
Channel breakdown
R1
G140
B161
Red1 (0.4%)
Green140 (54.9%)
Blue161 (63.1%)
Hue187.87°
Saturation (HSL)98.77%
Lightness31.76%
Dominant channelBlue
Hex per channelR 01 · G 8C · B A1
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