Recognised as Colour
#1B604D
- #1B604D
- Cyan
- Dark
- Nearest: Dark slate grey
#1B604D is a cyan with RGB values 27, 96, 77 and HSL 163°, 56%, 24%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#1B604D#1B604D
HEX#1B604D
RGBrgb(27, 96, 77)
RGB (0–1)0.1059, 0.3765, 0.302
RGB percentages10.6%, 37.6%, 30.2%
HSLhsl(163.5, 56.1%, 24.1%)
HSV / HSBhsv(163.5, 71.9%, 37.6%)
CMYK71.9%, 0%, 19.8%, 62.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,794,125
CSS custom property--colour: #1B604D;
Brightness & contrast
Relative luminance0.09135WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.43:1
Contrast with white7.43:1WCAG normal text: AAA
Contrast with black2.83:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#E49FB2
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.43:1WCAG large text: AAA
Contrast with black, large text2.83:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#601B2E
Analogous#1B602A, #1B5060
Triadic#4D1B60, #604D1B
Split complementary#601B50, #602A1B
Tetradic#2B1B60, #601B2E, #51601B
Tints, shades & saturation
Channel breakdown
R27
G96
B77
Red27 (10.6%)
Green96 (37.6%)
Blue77 (30.2%)
Hue163.48°
Saturation (HSL)56.1%
Lightness24.12%
Dominant channelGreen
Hex per channelR 1B · G 60 · B 4D
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