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Recognised as Colour

#258DFC

  • #258DFC
  • Blue
  • Dark
  • Nearest: Dodgerblue

#258DFC is a blue with RGB values 37, 141, 252 and HSL 211°, 97%, 57%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#258DFC#258DFC
HEX#258DFC
RGBrgb(37, 141, 252)
RGB (0–1)0.1451, 0.5529, 0.9882
RGB percentages14.5%, 55.3%, 98.8%
HSLhsl(211, 97.3%, 56.7%)
HSV / HSBhsv(211, 85.3%, 98.8%)
CMYK85.3%, 44%, 0%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,461,180
CSS custom property--colour: #258DFC;

Brightness & contrast

Relative luminance0.26471WCAG 2.x, 0 is black and 1 is white
Perceived brightness139 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.29:1
Contrast with white3.34:1WCAG normal text: Fail
Contrast with black6.29:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#DA7203

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5297FFno red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#2084FAno green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#00A8B8no blue cones; rare, and affects men and women equally; ΔE 60.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.34:1WCAG large text: AA
Contrast with black, large text6.29:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 1.5Cornflower blue · ΔE 14.4Royal blue · ΔE 18.7Slate blue · ΔE 28.7Medium purple · ΔE 29.1Medium slateblue · ΔE 30.7
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 1.45, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FC9425
Analogous#25F8FC, #2825FC
Triadic#FC258D, #8DFC25
Split complementary#FC2925, #F8FC25
Tetradic#FC25F9, #FC9425, #25FC29

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEF6FF
Lighter +30%#BCDCFE
Lighter +20%#8AC2FD
Lighter +10%#57A7FD
Darker −10%#0373EB
Darker −20%#035BB8
Darker −30%#024286
Darker −40%#012954
More saturated +25%#228DFF
Less saturated −25%#418EE0

Channel breakdown

R37
G141
B252
Red37 (14.5%)
Green141 (55.3%)
Blue252 (98.8%)
Hue210.98°
Saturation (HSL)97.29%
Lightness56.67%
Dominant channelBlue
Hex per channelR 25 · G 8D · B FC

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Every value on this page was computed from “258dfc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.