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Colour

#271D4A

  • #271D4A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#271D4A is a blue with RGB values 39, 29, 74 and HSL 253°, 44%, 20%. It is a dark colour, so white text on it reaches 15.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#271D4A#271D4A
HEX#271D4A
RGBrgb(39, 29, 74)
RGB (0–1)0.1529, 0.1137, 0.2902
RGB percentages15.3%, 11.4%, 29%
HSLhsl(253.3, 43.7%, 20.2%)
HSV / HSBhsv(253.3, 60.8%, 29%)
CMYK47.3%, 60.8%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,563,402
CSS custom property--colour: #271D4A;

Brightness & contrast

Relative luminance0.01804WCAG 2.x, 0 is black and 1 is white
Perceived brightness39.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.43:1
Contrast with white15.43:1WCAG normal text: AAA
Contrast with black1.36:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#D8E2B5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#07254Cno red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#082349no green cones; the most common form, about 1% of men; ΔE 11.4 from the original
Tritanopia#1D2730no blue cones; rare, and affects men and women equally; ΔE 27.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.43:1WCAG large text: AAA
Contrast with black, large text1.36:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 24.1Midnight blue · ΔE 27Black · ΔE 35Rebecca purple · ΔE 37.4Dark slate grey · ΔE 40.9Indigo · ΔE 43.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 24.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#404A1D
Analogous#1D294A, #3E1D4A
Triadic#4A271D, #1D4A27
Split complementary#4A3E1D, #294A1D
Tetradic#4A1D29, #404A1D, #1D4A3E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#816DC6
Lighter +30%#6149B7
Lighter +20%#4E3A93
Lighter +10%#3A2B6F
Darker −10%#140F25
Darker −20%#000001
Darker −30%#000000
Darker −40%#000000
More saturated +25%#201057
Less saturated −25%#2E2A3D

Channel breakdown

R39
G29
B74
Red39 (15.3%)
Green29 (11.4%)
Blue74 (29%)
Hue253.33°
Saturation (HSL)43.69%
Lightness20.2%
Dominant channelBlue
Hex per channelR 27 · G 1D · B 4A

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Every value on this page was computed from “271d4a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.