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Recognised as Colour

#128FC6

  • #128FC6
  • Cyan
  • Dark
  • Nearest: Steel blue

#128FC6 is a cyan with RGB values 18, 143, 198 and HSL 198°, 83%, 42%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#128FC6#128FC6
HEX#128FC6
RGBrgb(18, 143, 198)
RGB (0–1)0.0706, 0.5608, 0.7765
RGB percentages7.1%, 56.1%, 77.6%
HSLhsl(198.3, 83.3%, 42.4%)
HSV / HSBhsv(198.3, 90.9%, 77.6%)
CMYK90.9%, 27.8%, 0%, 22.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,216,454
CSS custom property--colour: #128FC6;

Brightness & contrast

Relative luminance0.23851WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.77:1
Contrast with white3.64:1WCAG normal text: Fail
Contrast with black5.77:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#ED7039

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#748FC9no red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#5D7FC5no green cones; the most common form, about 1% of men; ΔE 19.9 from the original
Tritanopia#009DA2no blue cones; rare, and affects men and women equally; ΔE 32.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.64:1WCAG large text: AA
Contrast with black, large text5.77:1WCAG large text: AAA

Named colours

Steel blue · ΔE 9.5Deep skyblue · ΔE 18.6Cornflower blue · ΔE 24.8Light skyblue · ΔE 25.3Light slate grey · ΔE 27.6Slate grey · ΔE 28.3
Nearest named CSS colourSteel blue (#4682B4)ΔE 9.47, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C64912
Analogous#12C6A3, #1235C6
Triadic#C6128F, #8FC612
Split complementary#C61235, #C6A312
Tetradic#A312C6, #C64912, #35C612

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACE1F8
Lighter +30%#7ECFF3
Lighter +20%#4FBEEF
Lighter +10%#20ADEB
Darker −10%#0E6D97
Darker −20%#094B69
Darker −30%#052A3A
Darker −40%#01080B
More saturated +25%#0096D8
Less saturated −25%#2D85AB

Channel breakdown

R18
G143
B198
Red18 (7.1%)
Green143 (56.1%)
Blue198 (77.6%)
Hue198.33°
Saturation (HSL)83.33%
Lightness42.35%
Dominant channelBlue
Hex per channelR 12 · G 8F · B C6

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Every value on this page was computed from “128fc6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.