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Recognised as Colour

#17867E

  • #17867E
  • Cyan
  • Dark
  • Nearest: Dark cyan

#17867E is a cyan with RGB values 23, 134, 126 and HSL 176°, 71%, 31%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#17867E#17867E
HEX#17867E
RGBrgb(23, 134, 126)
RGB (0–1)0.0902, 0.5255, 0.4941
RGB percentages9%, 52.5%, 49.4%
HSLhsl(175.7, 70.7%, 30.8%)
HSV / HSBhsv(175.7, 82.8%, 52.5%)
CMYK82.8%, 0%, 6%, 47.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,541,758
CSS custom property--colour: #17867E;

Brightness & contrast

Relative luminance0.18739WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.75:1
Contrast with white4.42:1WCAG normal text: Fail
Contrast with black4.75:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#E87981

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7E7E7Eno red cones; affects about 1% of men; ΔE 31.2 from the original
Deuteranopia#70737Fno green cones; the most common form, about 1% of men; ΔE 32.5 from the original
Tritanopia#008983no blue cones; rare, and affects men and women equally; ΔE 2.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.42:1WCAG large text: AA
Contrast with black, large text4.75:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 5.2Teal · ΔE 5.3Cadetblue · ΔE 15.9Light seagreen · ΔE 16.9Sea green · ΔE 25.8Dark slate grey · ΔE 27.1
Nearest named CSS colourDark cyan (#008B8B)ΔE 5.22, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#86171F
Analogous#178646, #175786
Triadic#7E1786, #867E17
Split complementary#861757, #864717
Tetradic#461786, #86171F, #578617

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#80E9E2
Lighter +30%#54E2D8
Lighter +20%#29DACD
Lighter +10%#1EB2A7
Darker −10%#105A55
Darker −20%#082F2C
Darker −30%#010303
Darker −40%#000000
More saturated +25%#039A8F
Less saturated −25%#2B726D

Channel breakdown

R23
G134
B126
Red23 (9%)
Green134 (52.5%)
Blue126 (49.4%)
Hue175.68°
Saturation (HSL)70.7%
Lightness30.78%
Dominant channelGreen
Hex per channelR 17 · G 86 · B 7E

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Every value on this page was computed from “17867e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.