Colour
#1B4A4A
- #1B4A4A
- Cyan
- Dark
- Nearest: Dark slate grey
#1B4A4A is a cyan with RGB values 27, 74, 74 and HSL 180°, 47%, 20%. It is a dark colour, so white text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#1B4A4A#1B4A4A
HEX#1B4A4A
RGBrgb(27, 74, 74)
RGB (0–1)0.1059, 0.2902, 0.2902
RGB percentages10.6%, 29%, 29%
HSLhsl(180, 46.5%, 19.8%)
HSV / HSBhsv(180, 63.5%, 29%)
CMYK63.5%, 0%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,788,490
CSS custom property--colour: #1B4A4A;
Brightness & contrast
Relative luminance0.05625WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.88:1
Contrast with white9.88:1WCAG normal text: AAA
Contrast with black2.12:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#E4B5B5
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.88:1WCAG large text: AAA
Contrast with black, large text2.12:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#4A1B1B
Analogous#1B4A33, #1B334A
Triadic#4A1B4A, #4A4A1B
Split complementary#4A1B33, #4A331B
Tetradic#331B4A, #4A1B1B, #334A1B
Tints, shades & saturation
Channel breakdown
R27
G74
B74
Red27 (10.6%)
Green74 (29%)
Blue74 (29%)
Hue180°
Saturation (HSL)46.53%
Lightness19.8%
Dominant channelGreen and Blue
Hex per channelR 1B · G 4A · B 4A
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