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Recognised as Colour

#1983A4

  • #1983A4
  • Cyan
  • Dark
  • Nearest: Steel blue

#1983A4 is a cyan with RGB values 25, 131, 164 and HSL 194°, 74%, 37%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#1983A4#1983A4
HEX#1983A4
RGBrgb(25, 131, 164)
RGB (0–1)0.098, 0.5137, 0.6431
RGB percentages9.8%, 51.4%, 64.3%
HSLhsl(194.2, 73.5%, 37.1%)
HSV / HSBhsv(194.2, 84.8%, 64.3%)
CMYK84.8%, 20.1%, 0%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,672,100
CSS custom property--colour: #1983A4;

Brightness & contrast

Relative luminance0.1912WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.82:1
Contrast with white4.35:1WCAG normal text: Fail
Contrast with black4.82:1WCAG normal text: AA
Greyscale equivalent#6F6F6F
Inverted#E67C5B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7180A6no red cones; affects about 1% of men; ΔE 20.8 from the original
Deuteranopia#5F73A4no green cones; the most common form, about 1% of men; ΔE 22.6 from the original
Tritanopia#008D8Eno blue cones; rare, and affects men and women equally; ΔE 21.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.35:1WCAG large text: AA
Contrast with black, large text4.82:1WCAG large text: AAA

Named colours

Steel blue · ΔE 14.2Slate grey · ΔE 20.9Light slate grey · ΔE 21Cadetblue · ΔE 21.1Teal · ΔE 21.2Dark cyan · ΔE 21.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.2, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A43A19
Analogous#19A480, #193DA4
Triadic#A41983, #83A419
Split complementary#A4193D, #A48019
Tetradic#8019A4, #A43A19, #3DA419

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#99DBF0
Lighter +30%#6DCBE9
Lighter +20%#41BCE2
Lighter +10%#20A6D0
Darker −10%#126078
Darker −20%#0C3C4B
Darker −30%#05191F
Darker −40%#000000
More saturated +25%#018FBC
Less saturated −25%#31778C

Channel breakdown

R25
G131
B164
Red25 (9.8%)
Green131 (51.4%)
Blue164 (64.3%)
Hue194.24°
Saturation (HSL)73.54%
Lightness37.06%
Dominant channelBlue
Hex per channelR 19 · G 83 · B A4

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Every value on this page was computed from “1983a4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.