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Recognised as Colour

#2280B4

  • #2280B4
  • Blue
  • Dark
  • Nearest: Steel blue

#2280B4 is a blue with RGB values 34, 128, 180 and HSL 201°, 68%, 42%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#2280B4#2280B4
HEX#2280B4
RGBrgb(34, 128, 180)
RGB (0–1)0.1333, 0.502, 0.7059
RGB percentages13.3%, 50.2%, 70.6%
HSLhsl(201.4, 68.2%, 42%)
HSV / HSBhsv(201.4, 81.1%, 70.6%)
CMYK81.1%, 28.9%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,261,172
CSS custom property--colour: #2280B4;

Brightness & contrast

Relative luminance0.19074WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.81:1
Contrast with white4.36:1WCAG normal text: Fail
Contrast with black4.81:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#DD7F4B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6780B6no red cones; affects about 1% of men; ΔE 14.4 from the original
Deuteranopia#5473B3no green cones; the most common form, about 1% of men; ΔE 16.1 from the original
Tritanopia#008D92no blue cones; rare, and affects men and women equally; ΔE 31.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.36:1WCAG large text: AA
Contrast with black, large text4.81:1WCAG large text: AAA

Named colours

Steel blue · ΔE 5.3Deep skyblue · ΔE 24.9Light slate grey · ΔE 25.1Slate grey · ΔE 25.2Cornflower blue · ΔE 25.3Light skyblue · ΔE 29.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 5.26, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B45622
Analogous#22B49F, #2237B4
Triadic#B42280, #80B422
Split complementary#B42237, #B49F22
Tetradic#9F22B4, #B45622, #37B422

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B2DAF0
Lighter +30%#87C6E8
Lighter +20%#5CB1E0
Lighter +10%#319DD8
Darker −10%#1A6189
Darker −20%#12435E
Darker −30%#0A2433
Darker −40%#020608
More saturated +25%#0788CF
Less saturated −25%#3D7899

Channel breakdown

R34
G128
B180
Red34 (13.3%)
Green128 (50.2%)
Blue180 (70.6%)
Hue201.37°
Saturation (HSL)68.22%
Lightness41.96%
Dominant channelBlue
Hex per channelR 22 · G 80 · B B4

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Every value on this page was computed from “2280b4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.