Recognised as Colour

#17553F

#17553F
Cyan
Dark
Nearest: Dark slate grey

#17553F is a cyan with RGB values 23, 85, 63 and HSL 159°, 57%, 21%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#17553F#17553F

HEX#17553F

RGBrgb(23, 85, 63)

RGB (0–1)0.0902, 0.3333, 0.2471

RGB percentages9%, 33.3%, 24.7%

HSLhsl(158.7, 57.4%, 21.2%)

HSV / HSBhsv(158.7, 72.9%, 33.3%)

CMYK72.9%, 0%, 25.9%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,529,151

CSS custom property--colour: #17553F;

Brightness & contrast

Relative luminance0.07038WCAG 2.x, 0 is black and 1 is white

Perceived brightness69.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.72:1

Contrast with white8.72:1WCAG normal text: AAA

Contrast with black2.41:1WCAG normal text: Fail

Greyscale equivalent#464646

Inverted#E8AAC0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#534F3Eno red cones; affects about 1% of men; ΔE 24.3 from the original

Deuteranopia#4B4940no green cones; the most common form, about 1% of men; ΔE 24.6 from the original

Tritanopia#00554Fno blue cones; rare, and affects men and women equally; ΔE 10.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text8.72:1WCAG large text: AAA

Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 17.7 Teal · ΔE 22.9 Dark olivegreen · ΔE 26.4 Dark cyan · ΔE 26.5 Sea green · ΔE 27.4 Dim grey · ΔE 29.4

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 17.66, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#55172D

Analogous#175520, #174C55

Triadic#3F1755, #553F17

Split complementary#55174C, #552017

Tetradic#201755, #55172D, #4C5517

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#63D5AD

Lighter +30%#3BCA97

Lighter +20%#2DA57B

Lighter +10%#227D5D

Darker −10%#0C2D21

Darker −20%#010504

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0A6243

Less saturated −25%#25483B

Channel breakdown

R23

G85

B63

Red23 (9%)

Green85 (33.3%)

Blue63 (24.7%)

Hue158.71°

Saturation (HSL)57.41%

Lightness21.18%

Dominant channelGreen

Hex per channelR 17 · G 55 · B 3F

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#17553F

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

Nerdulate something else