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Recognised as Colour

#17828D

  • #17828D
  • Cyan
  • Dark
  • Nearest: Teal

#17828D is a cyan with RGB values 23, 130, 141 and HSL 186°, 72%, 32%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#17828D#17828D
HEX#17828D
RGBrgb(23, 130, 141)
RGB (0–1)0.0902, 0.5098, 0.5529
RGB percentages9%, 51%, 55.3%
HSLhsl(185.6, 72%, 32.2%)
HSV / HSBhsv(185.6, 83.7%, 55.3%)
CMYK83.7%, 7.8%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,540,749
CSS custom property--colour: #17828D;

Brightness & contrast

Relative luminance0.18071WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.61:1
Contrast with white4.55:1WCAG normal text: AA
Contrast with black4.61:1WCAG normal text: AA
Greyscale equivalent#6C6C6C
Inverted#E87D72

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#767C8Eno red cones; affects about 1% of men; ΔE 26.2 from the original
Deuteranopia#67718Dno green cones; the most common form, about 1% of men; ΔE 27.2 from the original
Tritanopia#008885no blue cones; rare, and affects men and women equally; ΔE 9.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.55:1WCAG large text: AAA
Contrast with black, large text4.61:1WCAG large text: AAA

Named colours

Teal · ΔE 7.5Dark cyan · ΔE 8.7Cadetblue · ΔE 14.1Light seagreen · ΔE 22.4Slate grey · ΔE 22.5Light slate grey · ΔE 23
Nearest named CSS colourTeal (#008080)ΔE 7.46, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D2217
Analogous#178D5D, #17478D
Triadic#8D1782, #828D17
Split complementary#8D1747, #8D5D17
Tetradic#5D178D, #8D2217, #478D17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#85E2EB
Lighter +30%#59D7E4
Lighter +20%#2DCCDD
Lighter +10%#1EAAB9
Darker −10%#105A61
Darker −20%#093135
Darker −30%#020909
Darker −40%#000000
More saturated +25%#0393A2
Less saturated −25%#2B7179

Channel breakdown

R23
G130
B141
Red23 (9%)
Green130 (51%)
Blue141 (55.3%)
Hue185.59°
Saturation (HSL)71.95%
Lightness32.16%
Dominant channelBlue
Hex per channelR 17 · G 82 · B 8D

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Every value on this page was computed from “17828d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.