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Recognised as Colour

#273FD5

  • #273FD5
  • Blue
  • Dark
  • Nearest: Medium slateblue

#273FD5 is a blue with RGB values 39, 63, 213 and HSL 232°, 69%, 49%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Medium slateblue.

Colour values

#273FD5#273FD5
HEX#273FD5
RGBrgb(39, 63, 213)
RGB (0–1)0.1529, 0.2471, 0.8353
RGB percentages15.3%, 24.7%, 83.5%
HSLhsl(231.7, 69%, 49.4%)
HSV / HSBhsv(231.7, 81.7%, 83.5%)
CMYK81.7%, 70.4%, 0%, 16.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,572,245
CSS custom property--colour: #273FD5;

Brightness & contrast

Relative luminance0.0879WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.61:1
Contrast with white7.61:1WCAG normal text: AAA
Contrast with black2.76:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#D8C02A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005CDAno red cones; affects about 1% of men; ΔE 21.1 from the original
Deuteranopia#004BD2no green cones; the most common form, about 1% of men; ΔE 11.3 from the original
Tritanopia#006A86no blue cones; rare, and affects men and women equally; ΔE 82.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.61:1WCAG large text: AAA
Contrast with black, large text2.76:1WCAG large text: Fail

Named colours

Medium slateblue · ΔE 21.6Dark blue · ΔE 23.5Slate blue · ΔE 24.8Blue violet · ΔE 25.4Royal blue · ΔE 26.4Navy · ΔE 26.5
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 21.61, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D5BD27
Analogous#2796D5, #6627D5
Triadic#D5273F, #3FD527
Split complementary#D56627, #96D527
Tetradic#D52796, #D5BD27, #27D566

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D1D6F7
Lighter +30%#A6B0EF
Lighter +20%#7B8AE7
Lighter +10%#5064DF
Darker −10%#1F32AA
Darker −20%#17257F
Darker −30%#0F1954
Darker −40%#070C29
More saturated +25%#0828F5
Less saturated −25%#4756B6

Channel breakdown

R39
G63
B213
Red39 (15.3%)
Green63 (24.7%)
Blue213 (83.5%)
Hue231.72°
Saturation (HSL)69.05%
Lightness49.41%
Dominant channelBlue
Hex per channelR 27 · G 3F · B D5

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Every value on this page was computed from “273fd5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.