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Recognised as Colour

#2807B3

  • #2807B3
  • Blue
  • Dark
  • Nearest: Medium blue

#2807B3 is a blue with RGB values 40, 7, 179 and HSL 252°, 92%, 36%. It is a dark colour, so white text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2807B3#2807B3
HEX#2807B3
RGBrgb(40, 7, 179)
RGB (0–1)0.1569, 0.0275, 0.702
RGB percentages15.7%, 2.7%, 70.2%
HSLhsl(251.5, 92.5%, 36.5%)
HSV / HSBhsv(251.5, 96.1%, 70.2%)
CMYK77.7%, 96.1%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,623,411
CSS custom property--colour: #2807B3;

Brightness & contrast

Relative luminance0.03858WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.85:1
Contrast with white11.85:1WCAG normal text: AAA
Contrast with black1.77:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#D7F84C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003EB7no red cones; affects about 1% of men; ΔE 29.8 from the original
Deuteranopia#002FB0no green cones; the most common form, about 1% of men; ΔE 21.4 from the original
Tritanopia#004968no blue cones; rare, and affects men and women equally; ΔE 87.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.85:1WCAG large text: AAA
Contrast with black, large text1.77:1WCAG large text: Fail

Named colours

Medium blue · ΔE 14.6Dark blue · ΔE 16.3Navy · ΔE 21.4Blue violet · ΔE 22Dark violet · ΔE 24.9Indigo · ΔE 27.1
Nearest named CSS colourMedium blue (#0000CD)ΔE 14.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#92B307
Analogous#073CB3, #7E07B3
Triadic#B32807, #07B328
Split complementary#B37E07, #3CB307
Tetradic#B3073C, #92B307, #07B37E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A18CFA
Lighter +30%#795AF9
Lighter +20%#5129F7
Lighter +10%#3309E4
Darker −10%#1D0582
Darker −20%#120351
Darker −30%#070120
Darker −40%#000000
More saturated +25%#2400BA
Less saturated −25%#361E9C

Channel breakdown

R40
G7
B179
Red40 (15.7%)
Green7 (2.7%)
Blue179 (70.2%)
Hue251.51°
Saturation (HSL)92.47%
Lightness36.47%
Dominant channelBlue
Hex per channelR 28 · G 07 · B B3

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Every value on this page was computed from “2807b3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.