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Recognised as Colour

#2583AC

  • #2583AC
  • Cyan
  • Dark
  • Nearest: Steel blue

#2583AC is a cyan with RGB values 37, 131, 172 and HSL 198°, 65%, 41%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#2583AC#2583AC
HEX#2583AC
RGBrgb(37, 131, 172)
RGB (0–1)0.1451, 0.5137, 0.6745
RGB percentages14.5%, 51.4%, 67.5%
HSLhsl(198.2, 64.6%, 41%)
HSV / HSBhsv(198.2, 78.5%, 67.5%)
CMYK78.5%, 23.8%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,458,540
CSS custom property--colour: #2583AC;

Brightness & contrast

Relative luminance0.19604WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.92:1
Contrast with white4.27:1WCAG normal text: Fail
Contrast with black4.92:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#DA7C53

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6E82AEno red cones; affects about 1% of men; ΔE 17.1 from the original
Deuteranopia#5C75ABno green cones; the most common form, about 1% of men; ΔE 18.6 from the original
Tritanopia#008E91no blue cones; rare, and affects men and women equally; ΔE 25.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.27:1WCAG large text: AA
Contrast with black, large text4.92:1WCAG large text: AAA

Named colours

Steel blue · ΔE 9Light slate grey · ΔE 21.4Slate grey · ΔE 21.5Cadetblue · ΔE 25Deep skyblue · ΔE 25.5Teal · ΔE 26.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.99, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AC4E25
Analogous#25AC91, #2540AC
Triadic#AC2583, #83AC25
Split complementary#AC2540, #AC9225
Tetradic#9125AC, #AC4E25, #40AC25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AFDBEE
Lighter +30%#85C8E5
Lighter +20%#5BB5DC
Lighter +10%#31A2D3
Darker −10%#1C6382
Darker −20%#134358
Darker −30%#0A232E
Darker −40%#010304
More saturated +25%#0B8DC6
Less saturated −25%#3F7992

Channel breakdown

R37
G131
B172
Red37 (14.5%)
Green131 (51.4%)
Blue172 (67.5%)
Hue198.22°
Saturation (HSL)64.59%
Lightness40.98%
Dominant channelBlue
Hex per channelR 25 · G 83 · B AC

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Every value on this page was computed from “2583ac” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.