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Recognised as Colour

#228EF9

  • #228EF9
  • Blue
  • Dark
  • Nearest: Dodgerblue

#228EF9 is a blue with RGB values 34, 142, 249 and HSL 210°, 95%, 55%. 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

#228EF9#228EF9
HEX#228EF9
RGBrgb(34, 142, 249)
RGB (0–1)0.1333, 0.5569, 0.9765
RGB percentages13.3%, 55.7%, 97.6%
HSLhsl(209.9, 94.7%, 55.5%)
HSV / HSBhsv(209.9, 86.3%, 97.6%)
CMYK86.3%, 43%, 0%, 2.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,264,825
CSS custom property--colour: #228EF9;

Brightness & contrast

Relative luminance0.26526WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.31:1
Contrast with white3.33:1WCAG normal text: Fail
Contrast with black6.31:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#DD7106

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5697FDno red cones; affects about 1% of men; ΔE 6.4 from the original
Deuteranopia#2A84F7no green cones; the most common form, about 1% of men; ΔE 7.3 from the original
Tritanopia#00A8B7no blue cones; rare, and affects men and women equally; ΔE 58.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.33:1WCAG large text: AA
Contrast with black, large text6.31:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 2.3Cornflower blue · ΔE 12.6Royal blue · ΔE 20.5Medium purple · ΔE 30.1Slate blue · ΔE 30.2Steel blue · ΔE 32.7
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 2.26, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F98D22
Analogous#22F9F9, #2222F9
Triadic#F9228E, #8EF922
Split complementary#F92222, #F9F922
Tetradic#F922F9, #F98D22, #22F922

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9F4FE
Lighter +30%#B7DAFD
Lighter +20%#85C1FC
Lighter +10%#54A7FA
Darker −10%#0675E2
Darker −20%#055BB0
Darker −30%#03417F
Darker −40%#02284D
More saturated +25%#1C8EFF
Less saturated −25%#3E8EDD

Channel breakdown

R34
G142
B249
Red34 (13.3%)
Green142 (55.7%)
Blue249 (97.6%)
Hue209.86°
Saturation (HSL)94.71%
Lightness55.49%
Dominant channelBlue
Hex per channelR 22 · G 8E · B F9

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Every value on this page was computed from “228ef9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.