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Recognised as Colour

#2B4CEF

  • #2B4CEF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#2B4CEF is a blue with RGB values 43, 76, 239 and HSL 230°, 86%, 55%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#2B4CEF#2B4CEF
HEX#2B4CEF
RGBrgb(43, 76, 239)
RGB (0–1)0.1686, 0.298, 0.9373
RGB percentages16.9%, 29.8%, 93.7%
HSLhsl(229.9, 86%, 55.3%)
HSV / HSBhsv(229.9, 82%, 93.7%)
CMYK82%, 68.2%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,837,743
CSS custom property--colour: #2B4CEF;

Brightness & contrast

Relative luminance0.11914WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.21:1
Contrast with white6.21:1WCAG normal text: AA
Contrast with black3.38:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#D4B310

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006AF4no red cones; affects about 1% of men; ΔE 21.7 from the original
Deuteranopia#0057ECno green cones; the most common form, about 1% of men; ΔE 10.5 from the original
Tritanopia#007998no blue cones; rare, and affects men and women equally; ΔE 87.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.21:1WCAG large text: AAA
Contrast with black, large text3.38:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 22.7Blue violet · ΔE 24.6Medium blue · ΔE 26.7Royal blue · ΔE 29Slate blue · ΔE 29Dark orchid · ΔE 30.2
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 22.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EFCE2B
Analogous#2BAEEF, #6C2BEF
Triadic#EF2B4C, #4CEF2B
Split complementary#EF6C2B, #AEEF2B
Tetradic#EF2BAE, #EFCE2B, #2BEF6C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9ECFD
Lighter +30%#B9C4FA
Lighter +20%#8A9CF6
Lighter +10%#5A74F3
Darker −10%#1032D7
Darker −20%#0D27A7
Darker −30%#091C78
Darker −40%#051149
More saturated +25%#1B41FF
Less saturated −25%#485FD3

Channel breakdown

R43
G76
B239
Red43 (16.9%)
Green76 (29.8%)
Blue239 (93.7%)
Hue229.9°
Saturation (HSL)85.96%
Lightness55.29%
Dominant channelBlue
Hex per channelR 2B · G 4C · B EF

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Every value on this page was computed from “2b4cef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.