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Recognised as Colour

#281B7D

  • #281B7D
  • Blue
  • Dark
  • Nearest: Midnight blue

#281B7D is a blue with RGB values 40, 27, 125 and HSL 248°, 64%, 30%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#281B7D#281B7D
HEX#281B7D
RGBrgb(40, 27, 125)
RGB (0–1)0.1569, 0.1059, 0.4902
RGB percentages15.7%, 10.6%, 49%
HSLhsl(248, 64.5%, 29.8%)
HSV / HSBhsv(248, 78.4%, 49%)
CMYK68%, 78.4%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,628,477
CSS custom property--colour: #281B7D;

Brightness & contrast

Relative luminance0.02716WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.61:1
Contrast with white13.61:1WCAG normal text: AAA
Contrast with black1.54:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#D7E482

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003280no red cones; affects about 1% of men; ΔE 18.7 from the original
Deuteranopia#002A7Bno green cones; the most common form, about 1% of men; ΔE 14.5 from the original
Tritanopia#00374Bno blue cones; rare, and affects men and women equally; ΔE 57.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.61:1WCAG large text: AAA
Contrast with black, large text1.54:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 6.7Indigo · ΔE 15.1Rebecca purple · ΔE 16.4Navy · ΔE 17.1Dark slateblue · ΔE 19.3Dark blue · ΔE 21.3
Nearest named CSS colourMidnight blue (#191970)ΔE 6.69, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#707D1B
Analogous#1B3F7D, #591B7D
Triadic#7D281B, #1B7D28
Split complementary#7D591B, #3F7D1B
Tetradic#7D1B3F, #707D1B, #1B7D59

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8E80E4
Lighter +30%#6856DB
Lighter +20%#432DD1
Lighter +10%#3524A7
Darker −10%#1B1253
Darker −20%#0D0929
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1A0890
Less saturated −25%#362E6A

Channel breakdown

R40
G27
B125
Red40 (15.7%)
Green27 (10.6%)
Blue125 (49%)
Hue247.96°
Saturation (HSL)64.47%
Lightness29.8%
Dominant channelBlue
Hex per channelR 28 · G 1B · B 7D

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Every value on this page was computed from “281b7d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.