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Recognised as Colour

#1234FF

  • #1234FF
  • Blue
  • Dark
  • Nearest: Medium blue

#1234FF is a blue with RGB values 18, 52, 255 and HSL 231°, 100%, 54%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1234FF#1234FF
HEX#1234FF
RGBrgb(18, 52, 255)
RGB (0–1)0.0706, 0.2039, 1
RGB percentages7.1%, 20.4%, 100%
HSLhsl(231.4, 100%, 53.5%)
HSV / HSBhsv(231.4, 92.9%, 100%)
CMYK92.9%, 79.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,193,215
CSS custom property--colour: #1234FF;

Brightness & contrast

Relative luminance0.09805WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.09:1
Contrast with white7.09:1WCAG normal text: AAA
Contrast with black2.96:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#EDCB00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064FFno red cones; affects about 1% of men; ΔE 33.9 from the original
Deuteranopia#004CFCno green cones; the most common form, about 1% of men; ΔE 17 from the original
Tritanopia#00759Bno blue cones; rare, and affects men and women equally; ΔE 105.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.09:1WCAG large text: AAA
Contrast with black, large text2.96:1WCAG large text: Fail

Named colours

Medium blue · ΔE 14.9Blue · ΔE 17.9Blue violet · ΔE 25.5Dark violet · ΔE 31.2Dark orchid · ΔE 39.5Dark blue · ΔE 40.6
Nearest named CSS colourMedium blue (#0000CD)ΔE 14.94, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFDD12
Analogous#12ABFF, #6612FF
Triadic#FF1234, #34FF12
Split complementary#FF6612, #ABFF12
Tetradic#FF12AB, #FFDD12, #12FF66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DEE3FF
Lighter +30%#ABB7FF
Lighter +20%#788BFF
Lighter +10%#4560FF
Darker −10%#0020DE
Darker −20%#0019AB
Darker −30%#001178
Darker −40%#000A45
More saturated +25%#1234FF
Less saturated −25%#3049E1

Channel breakdown

R18
G52
B255
Red18 (7.1%)
Green52 (20.4%)
Blue255 (100%)
Hue231.39°
Saturation (HSL)100%
Lightness53.53%
Dominant channelBlue
Hex per channelR 12 · G 34 · B FF

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Every value on this page was computed from “1234ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.