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Recognised as Colour

#1800FB

  • #1800FB
  • Blue
  • Dark
  • Nearest: Blue

#1800FB is a blue with RGB values 24, 0, 251 and HSL 246°, 100%, 49%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#1800FB#1800FB
HEX#1800FB
RGBrgb(24, 0, 251)
RGB (0–1)0.0941, 0, 0.9843
RGB percentages9.4%, 0%, 98.4%
HSLhsl(245.7, 100%, 49.2%)
HSV / HSBhsv(245.7, 100%, 98.4%)
CMYK90.4%, 100%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,573,115
CSS custom property--colour: #1800FB;

Brightness & contrast

Relative luminance0.07159WCAG 2.x, 0 is black and 1 is white
Perceived brightness85.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.64:1
Contrast with white8.64:1WCAG normal text: AAA
Contrast with black2.43:1WCAG normal text: Fail
Greyscale equivalent#171717
Inverted#E7FF04

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0058FFno red cones; affects about 1% of men; ΔE 40.9 from the original
Deuteranopia#003EF8no green cones; the most common form, about 1% of men; ΔE 25.3 from the original
Tritanopia#006993no blue cones; rare, and affects men and women equally; ΔE 116.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.64:1WCAG large text: AAA
Contrast with black, large text2.43:1WCAG large text: Fail

Named colours

Blue · ΔE 2.2Medium blue · ΔE 19.6Blue violet · ΔE 33.7Dark violet · ΔE 36.3Dark orchid · ΔE 48.9Dark blue · ΔE 49.6
Nearest named CSS colourBlue (#0000FF)ΔE 2.19, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E3FB00
Analogous#0066FB, #9500FB
Triadic#FB1800, #00FB18
Split complementary#FB9500, #66FB00
Tetradic#FB0066, #E3FB00, #00FB95

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDC8FF
Lighter +30%#9F95FF
Lighter +20%#7162FF
Lighter +10%#432FFF
Darker −10%#1300C8
Darker −20%#0E0095
Darker −30%#090062
Darker −40%#04002F
More saturated +25%#1800FB
Less saturated −25%#311FDC

Channel breakdown

R24
G0
B251
Red24 (9.4%)
Green0 (0%)
Blue251 (98.4%)
Hue245.74°
Saturation (HSL)100%
Lightness49.22%
Dominant channelBlue
Hex per channelR 18 · G 00 · B FB

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Every value on this page was computed from “1800fb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.