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Recognised as Colour

#1E2155

  • #1E2155
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1E2155 is a blue with RGB values 30, 33, 85 and HSL 237°, 48%, 23%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1E2155#1E2155
HEX#1E2155
RGBrgb(30, 33, 85)
RGB (0–1)0.1176, 0.1294, 0.3333
RGB percentages11.8%, 12.9%, 33.3%
HSLhsl(236.7, 47.8%, 22.5%)
HSV / HSBhsv(236.7, 64.7%, 33.3%)
CMYK64.7%, 61.2%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,974,613
CSS custom property--colour: #1E2155;

Brightness & contrast

Relative luminance0.0202WCAG 2.x, 0 is black and 1 is white
Perceived brightness41.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.96:1
Contrast with white14.96:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#E1DEAA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002957no red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#002554no green cones; the most common form, about 1% of men; ΔE 7.8 from the original
Tritanopia#002D37no blue cones; rare, and affects men and women equally; ΔE 34.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.96:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.4Midnight blue · ΔE 23Rebecca purple · ΔE 34.8Black · ΔE 39.4Indigo · ΔE 41.1Steel blue · ΔE 42.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.44, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#55521E
Analogous#1E3C55, #371E55
Triadic#551E21, #21551E
Split complementary#55371E, #3C551E
Tetradic#551E3C, #55521E, #1E5537

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7277CD
Lighter +30%#4C52C0
Lighter +20%#393EA0
Lighter +10%#2B307B
Darker −10%#11122F
Darker −20%#03040A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#101463
Less saturated −25%#2C2E47

Channel breakdown

R30
G33
B85
Red30 (11.8%)
Green33 (12.9%)
Blue85 (33.3%)
Hue236.73°
Saturation (HSL)47.83%
Lightness22.55%
Dominant channelBlue
Hex per channelR 1E · G 21 · B 55

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Every value on this page was computed from “1e2155” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.