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Recognised as Colour

#0091DF

  • #0091DF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#0091DF is a blue with RGB values 0, 145, 223 and HSL 201°, 100%, 44%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#0091DF#0091DF
HEX#0091DF
RGBrgb(0, 145, 223)
RGB (0–1)0, 0.5686, 0.8745
RGB percentages0%, 56.9%, 87.5%
HSLhsl(201, 100%, 43.7%)
HSV / HSBhsv(201, 100%, 87.5%)
CMYK100%, 35%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer37,343
CSS custom property--colour: #0091DF;

Brightness & contrast

Relative luminance0.25579WCAG 2.x, 0 is black and 1 is white
Perceived brightness134.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.12:1
Contrast with white3.43:1WCAG normal text: Fail
Contrast with black6.12:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#FF6E20

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B94E2no red cones; affects about 1% of men; ΔE 13.2 from the original
Deuteranopia#4E83DEno green cones; the most common form, about 1% of men; ΔE 15.4 from the original
Tritanopia#00A4ADno blue cones; rare, and affects men and women equally; ΔE 43.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.43:1WCAG large text: AA
Contrast with black, large text6.12:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 13.9Steel blue · ΔE 17.1Dodgerblue · ΔE 20.4Deep skyblue · ΔE 21.2Light skyblue · ΔE 30.6Royal blue · ΔE 35.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DF4E00
Analogous#00DFBD, #0022DF
Triadic#DF0091, #91DF00
Split complementary#DF0022, #DFBD00
Tetradic#BD00DF, #DF4E00, #22DF00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACE2FF
Lighter +30%#79D0FF
Lighter +20%#46BEFF
Lighter +10%#13ACFF
Darker −10%#0070AC
Darker −20%#004F79
Darker −30%#002E46
Darker −40%#000C13
More saturated +25%#0091DF
Less saturated −25%#1C89C3

Channel breakdown

R0
G145
B223
Red0 (0%)
Green145 (56.9%)
Blue223 (87.5%)
Hue200.99°
Saturation (HSL)100%
Lightness43.73%
Dominant channelBlue
Hex per channelR 00 · G 91 · B DF

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Every value on this page was computed from “0091df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.