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Colour

#2580EB

  • #2580EB
  • Blue
  • Dark
  • Nearest: Dodgerblue

#2580EB is a blue with RGB values 37, 128, 235 and HSL 212°, 83%, 53%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#2580EB#2580EB
HEX#2580EB
RGBrgb(37, 128, 235)
RGB (0–1)0.1451, 0.502, 0.9216
RGB percentages14.5%, 50.2%, 92.2%
HSLhsl(212.4, 83.2%, 53.3%)
HSV / HSBhsv(212.4, 84.3%, 92.2%)
CMYK84.3%, 45.5%, 0%, 7.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,457,835
CSS custom property--colour: #2580EB;

Brightness & contrast

Relative luminance0.2183WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.37:1
Contrast with white3.91:1WCAG normal text: Fail
Contrast with black5.37:1WCAG normal text: AA
Greyscale equivalent#747474
Inverted#DA7F14

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#458AEFno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#0A79E9no green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#009AAAno blue cones; rare, and affects men and women equally; ΔE 59.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.91:1WCAG large text: AA
Contrast with black, large text5.37:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 6.5Cornflower blue · ΔE 14.8Royal blue · ΔE 15.4Slate blue · ΔE 25.1Medium purple · ΔE 26.6Medium slateblue · ΔE 28.8
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 6.53, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EB9025
Analogous#25E3EB, #2D25EB
Triadic#EB2580, #80EB25
Split complementary#EB2D25, #E3EB25
Tetradic#EB25E3, #EB9025, #25EB2D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E0EDFC
Lighter +30%#B1D2F8
Lighter +20%#82B6F4
Lighter +10%#549BEF
Darker −10%#1367CA
Darker −20%#0E4F9C
Darker −30%#0A386D
Darker −40%#06203E
More saturated +25%#117EFF
Less saturated −25%#4382CD

Channel breakdown

R37
G128
B235
Red37 (14.5%)
Green128 (50.2%)
Blue235 (92.2%)
Hue212.42°
Saturation (HSL)83.19%
Lightness53.33%
Dominant channelBlue
Hex per channelR 25 · G 80 · B EB

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Every value on this page was computed from “2580eb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.