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Colour

#121AEE

  • #121AEE
  • Blue
  • Dark
  • Nearest: Medium blue

#121AEE is a blue with RGB values 18, 26, 238 and HSL 238°, 87%, 50%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#121AEE#121AEE
HEX#121AEE
RGBrgb(18, 26, 238)
RGB (0–1)0.0706, 0.102, 0.9333
RGB percentages7.1%, 10.2%, 93.3%
HSLhsl(237.8, 86.6%, 50.2%)
HSV / HSBhsv(237.8, 92.4%, 93.3%)
CMYK92.4%, 89.1%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,186,542
CSS custom property--colour: #121AEE;

Brightness & contrast

Relative luminance0.0704WCAG 2.x, 0 is black and 1 is white
Perceived brightness83.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.72:1
Contrast with white8.72:1WCAG normal text: AAA
Contrast with black2.41:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#EDE511

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0056F3no red cones; affects about 1% of men; ΔE 34.8 from the original
Deuteranopia#003FEBno green cones; the most common form, about 1% of men; ΔE 21.4 from the original
Tritanopia#00678Dno blue cones; rare, and affects men and women equally; ΔE 107.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.72:1WCAG large text: AAA
Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Medium blue · ΔE 10.5Blue · ΔE 12.9Blue violet · ΔE 26.3Dark violet · ΔE 30.3Dark blue · ΔE 39.9Dark orchid · ΔE 40.8
Nearest named CSS colourMedium blue (#0000CD)ΔE 10.51, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EEE612
Analogous#1288EE, #7812EE
Triadic#EE121A, #1AEE12
Split complementary#EE7812, #88EE12
Tetradic#EE1288, #EEE612, #12EE78

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D0D2FC
Lighter +30%#A1A4F8
Lighter +20%#7176F5
Lighter +10%#4248F1
Darker −10%#0E14BF
Darker −20%#0A0F90
Darker −30%#070A60
Darker −40%#030531
More saturated +25%#010AFF
Less saturated −25%#3237CE

Channel breakdown

R18
G26
B238
Red18 (7.1%)
Green26 (10.2%)
Blue238 (93.3%)
Hue237.82°
Saturation (HSL)86.61%
Lightness50.2%
Dominant channelBlue
Hex per channelR 12 · G 1A · B EE

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Every value on this page was computed from “121aee” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.