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Recognised as Colour

#258CFD

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

#258CFD is a blue with RGB values 37, 140, 253 and HSL 211°, 98%, 57%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#258CFD#258CFD
HEX#258CFD
RGBrgb(37, 140, 253)
RGB (0–1)0.1451, 0.549, 0.9922
RGB percentages14.5%, 54.9%, 99.2%
HSLhsl(211.4, 98.2%, 56.9%)
HSV / HSBhsv(211.4, 85.4%, 99.2%)
CMYK85.4%, 44.7%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,460,925
CSS custom property--colour: #258CFD;

Brightness & contrast

Relative luminance0.26241WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.25:1
Contrast with white3.36:1WCAG normal text: Fail
Contrast with black6.25:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#DA7302

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4F96FFno red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#1783FBno green cones; the most common form, about 1% of men; ΔE 6 from the original
Tritanopia#00A7B8no blue cones; rare, and affects men and women equally; ΔE 61.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.36:1WCAG large text: AA
Contrast with black, large text6.25:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 2.5Cornflower blue · ΔE 15.5Royal blue · ΔE 17.7Slate blue · ΔE 28Medium purple · ΔE 28.6Medium slateblue · ΔE 29.7
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 2.48, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FD9625
Analogous#25F8FD, #2A25FD
Triadic#FD258C, #8CFD25
Split complementary#FD2A25, #F8FD25
Tetradic#FD25F8, #FD9625, #25FD2A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF7FF
Lighter +30%#BDDCFE
Lighter +20%#8AC1FE
Lighter +10%#58A7FD
Darker −10%#0272ED
Darker −20%#025ABA
Darker −30%#014188
Darker −40%#012955
More saturated +25%#238CFF
Less saturated −25%#418DE2

Channel breakdown

R37
G140
B253
Red37 (14.5%)
Green140 (54.9%)
Blue253 (99.2%)
Hue211.39°
Saturation (HSL)98.18%
Lightness56.86%
Dominant channelBlue
Hex per channelR 25 · G 8C · B FD

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