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Colour

#2A5BF3

  • #2A5BF3
  • Blue
  • Dark
  • Nearest: Medium slateblue

#2A5BF3 is a blue with RGB values 42, 91, 243 and HSL 225°, 89%, 56%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#2A5BF3#2A5BF3
HEX#2A5BF3
RGBrgb(42, 91, 243)
RGB (0–1)0.1647, 0.3569, 0.9529
RGB percentages16.5%, 35.7%, 95.3%
HSLhsl(225.4, 89.3%, 55.9%)
HSV / HSBhsv(225.4, 82.7%, 95.3%)
CMYK82.7%, 62.6%, 0%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,776,051
CSS custom property--colour: #2A5BF3;

Brightness & contrast

Relative luminance0.14445WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.4:1
Contrast with white5.4:1WCAG normal text: AA
Contrast with black3.89:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#D5A40C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0074F8no red cones; affects about 1% of men; ΔE 18.3 from the original
Deuteranopia#0061F0no green cones; the most common form, about 1% of men; ΔE 7.1 from the original
Tritanopia#00839Fno blue cones; rare, and affects men and women equally; ΔE 82.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.4:1WCAG large text: AAA
Contrast with black, large text3.89:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 16.7Royal blue · ΔE 20.1Slate blue · ΔE 22.7Blue violet · ΔE 31.2Medium purple · ΔE 31.9Dark orchid · ΔE 32.8
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 16.66, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F3C22A
Analogous#2AC0F3, #5E2AF3
Triadic#F32A5B, #5BF32A
Split complementary#F35E2A, #C0F32A
Tetradic#F32AC0, #F3C22A, #2AF35E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBF0FE
Lighter +30%#BBCBFB
Lighter +20%#8BA5F8
Lighter +10%#5A80F6
Darker −10%#0C3FDE
Darker −20%#0A32AD
Darker −30%#07247D
Darker −40%#04164D
More saturated +25%#1E55FF
Less saturated −25%#4669D7

Channel breakdown

R42
G91
B243
Red42 (16.5%)
Green91 (35.7%)
Blue243 (95.3%)
Hue225.37°
Saturation (HSL)89.33%
Lightness55.88%
Dominant channelBlue
Hex per channelR 2A · G 5B · B F3

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Every value on this page was computed from “2a5bf3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.