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Recognised as Colour

#1241A3

  • #1241A3
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1241A3 is a blue with RGB values 18, 65, 163 and HSL 221°, 80%, 35%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1241A3#1241A3
HEX#1241A3
RGBrgb(18, 65, 163)
RGB (0–1)0.0706, 0.2549, 0.6392
RGB percentages7.1%, 25.5%, 63.9%
HSLhsl(220.6, 80.1%, 35.5%)
HSV / HSBhsv(220.6, 89%, 63.9%)
CMYK89%, 60.1%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,196,451
CSS custom property--colour: #1241A3;

Brightness & contrast

Relative luminance0.06554WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.09:1
Contrast with white9.09:1WCAG normal text: AAA
Contrast with black2.31:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#EDBE5C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004FA6no red cones; affects about 1% of men; ΔE 11 from the original
Deuteranopia#0042A1no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#005A6Bno blue cones; rare, and affects men and women equally; ΔE 57.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.09:1WCAG large text: AAA
Contrast with black, large text2.31:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15Midnight blue · ΔE 18.3Slate blue · ΔE 18.8Royal blue · ΔE 19.1Rebecca purple · ΔE 21.2Medium purple · ΔE 28.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.99, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A37412
Analogous#1289A3, #2B12A3
Triadic#A31241, #41A312
Split complementary#A32C12, #89A312
Tetradic#A31289, #A37412, #12A32B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8EAFF3
Lighter +30%#618EED
Lighter +20%#336EE8
Lighter +10%#1753D1
Darker −10%#0D2F75
Darker −20%#081C47
Darker −30%#030A19
Darker −40%#000000
More saturated +25%#003BB5
Less saturated −25%#29498C

Channel breakdown

R18
G65
B163
Red18 (7.1%)
Green65 (25.5%)
Blue163 (63.9%)
Hue220.55°
Saturation (HSL)80.11%
Lightness35.49%
Dominant channelBlue
Hex per channelR 12 · G 41 · B A3

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Every value on this page was computed from “1241a3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.