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Colour

#281A49

  • #281A49
  • Violet
  • Dark
  • Nearest: Dark slateblue

#281A49 is a violet with RGB values 40, 26, 73 and HSL 258°, 47%, 19%. It is a dark colour, so white text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#281A49#281A49
HEX#281A49
RGBrgb(40, 26, 73)
RGB (0–1)0.1569, 0.102, 0.2863
RGB percentages15.7%, 10.2%, 28.6%
HSLhsl(257.9, 47.5%, 19.4%)
HSV / HSBhsv(257.9, 64.4%, 28.6%)
CMYK45.2%, 64.4%, 0%, 71.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,628,169
CSS custom property--colour: #281A49;

Brightness & contrast

Relative luminance0.01671WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.74:1
Contrast with white15.74:1WCAG normal text: AAA
Contrast with black1.33:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#D7E5B6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#01234Bno red cones; affects about 1% of men; ΔE 13.5 from the original
Deuteranopia#052248no green cones; the most common form, about 1% of men; ΔE 13.6 from the original
Tritanopia#1F242Eno blue cones; rare, and affects men and women equally; ΔE 27.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.74:1WCAG large text: AAA
Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 23.7Midnight blue · ΔE 25.6Rebecca purple · ΔE 36.2Black · ΔE 36.2Indigo · ΔE 41.9Dark slate grey · ΔE 43
Nearest named CSS colourDark slateblue (#483D8B)ΔE 23.68, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B491A
Analogous#1A2349, #401A49
Triadic#49281A, #1A4928
Split complementary#49401A, #23491A
Tetradic#491A23, #3B491A, #1A4940

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8466C9
Lighter +30%#6642BA
Lighter +20%#513594
Lighter +10%#3D276F
Darker −10%#130D23
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#230E55
Less saturated −25%#2D263D

Channel breakdown

R40
G26
B73
Red40 (15.7%)
Green26 (10.2%)
Blue73 (28.6%)
Hue257.87°
Saturation (HSL)47.47%
Lightness19.41%
Dominant channelBlue
Hex per channelR 28 · G 1A · B 49

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Every value on this page was computed from “281a49” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.