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Recognised as Colour

#128AA3

  • #128AA3
  • Cyan
  • Dark
  • Nearest: Dark cyan

#128AA3 is a cyan with RGB values 18, 138, 163 and HSL 190°, 80%, 35%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#128AA3#128AA3
HEX#128AA3
RGBrgb(18, 138, 163)
RGB (0–1)0.0706, 0.5412, 0.6392
RGB percentages7.1%, 54.1%, 63.9%
HSLhsl(190.3, 80.1%, 35.5%)
HSV / HSBhsv(190.3, 89%, 63.9%)
CMYK89%, 15.3%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,215,139
CSS custom property--colour: #128AA3;

Brightness & contrast

Relative luminance0.2095WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.19:1
Contrast with white4.05:1WCAG normal text: Fail
Contrast with black5.19:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#ED755C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7A86A4no red cones; affects about 1% of men; ΔE 24.3 from the original
Deuteranopia#6879A3no green cones; the most common form, about 1% of men; ΔE 25.8 from the original
Tritanopia#009392no blue cones; rare, and affects men and women equally; ΔE 17.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.05:1WCAG large text: AA
Contrast with black, large text5.19:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 16Teal · ΔE 16.1Cadetblue · ΔE 16.7Steel blue · ΔE 20Light slate grey · ΔE 22Slate grey · ΔE 22.1
Nearest named CSS colourDark cyan (#008B8B)ΔE 15.95, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A32B12
Analogous#12A374, #1241A3
Triadic#A3128A, #8AA312
Split complementary#A31241, #A37412
Tetradic#7412A3, #A32B12, #41A312

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8EE1F3
Lighter +30%#61D5ED
Lighter +20%#33C9E8
Lighter +10%#17B1D1
Darker −10%#0D6375
Darker −20%#083C47
Darker −30%#031519
Darker −40%#000000
More saturated +25%#0096B5
Less saturated −25%#297B8C

Channel breakdown

R18
G138
B163
Red18 (7.1%)
Green138 (54.1%)
Blue163 (63.9%)
Hue190.34°
Saturation (HSL)80.11%
Lightness35.49%
Dominant channelBlue
Hex per channelR 12 · G 8A · B A3

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Every value on this page was computed from “128aa3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.