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Recognised as Colour

#2A91CB

  • #2A91CB
  • Blue
  • Dark
  • Nearest: Steel blue

#2A91CB is a blue with RGB values 42, 145, 203 and HSL 202°, 66%, 48%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#2A91CB#2A91CB
HEX#2A91CB
RGBrgb(42, 145, 203)
RGB (0–1)0.1647, 0.5686, 0.7961
RGB percentages16.5%, 56.9%, 79.6%
HSLhsl(201.6, 65.7%, 48%)
HSV / HSBhsv(201.6, 79.3%, 79.6%)
CMYK79.3%, 28.6%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,789,835
CSS custom property--colour: #2A91CB;

Brightness & contrast

Relative luminance0.25055WCAG 2.x, 0 is black and 1 is white
Perceived brightness132.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.01:1
Contrast with white3.49:1WCAG normal text: Fail
Contrast with black6.01:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#D56E34

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7591CEno red cones; affects about 1% of men; ΔE 15.7 from the original
Deuteranopia#6083CAno green cones; the most common form, about 1% of men; ΔE 17.2 from the original
Tritanopia#00A0A5no blue cones; rare, and affects men and women equally; ΔE 34.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.49:1WCAG large text: AA
Contrast with black, large text6.01:1WCAG large text: AAA

Named colours

Steel blue · ΔE 8.9Deep skyblue · ΔE 18.3Cornflower blue · ΔE 21.9Light skyblue · ΔE 24.6Light slate grey · ΔE 27.8Sky blue · ΔE 28.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.89, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB642A
Analogous#2ACBB5, #2A40CB
Triadic#CB2A91, #91CB2A
Split complementary#CB2A40, #CBB52A
Tetradic#B52ACB, #CB642A, #40CB2A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CCE6F5
Lighter +30%#A2D1EC
Lighter +20%#78BCE3
Lighter +10%#4EA8DA
Darker −10%#2173A1
Darker −20%#195576
Darker −30%#10364C
Darker −40%#071822
More saturated +25%#0B9AEA
Less saturated −25%#4988AC

Channel breakdown

R42
G145
B203
Red42 (16.5%)
Green145 (56.9%)
Blue203 (79.6%)
Hue201.61°
Saturation (HSL)65.71%
Lightness48.04%
Dominant channelBlue
Hex per channelR 2A · G 91 · B CB

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Every value on this page was computed from “2a91cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.