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Recognised as Colour

#23305F

  • #23305F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#23305F is a blue with RGB values 35, 48, 95 and HSL 227°, 46%, 25%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#23305F#23305F
HEX#23305F
RGBrgb(35, 48, 95)
RGB (0–1)0.1373, 0.1882, 0.3725
RGB percentages13.7%, 18.8%, 37.3%
HSLhsl(227, 46.2%, 25.5%)
HSV / HSBhsv(227, 63.2%, 37.3%)
CMYK63.2%, 49.5%, 0%, 62.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,306,143
CSS custom property--colour: #23305F;

Brightness & contrast

Relative luminance0.03297WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.65:1
Contrast with white12.65:1WCAG normal text: AAA
Contrast with black1.66:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#DCCFA0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1A3661no red cones; affects about 1% of men; ΔE 5.6 from the original
Deuteranopia#11305Eno green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#003B42no blue cones; rare, and affects men and women equally; ΔE 32.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.65:1WCAG large text: AAA
Contrast with black, large text1.66:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.8Midnight blue · ΔE 29.3Steel blue · ΔE 34.7Dark slate grey · ΔE 35.9Black · ΔE 38.1Rebecca purple · ΔE 38.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5F5223
Analogous#234E5F, #34235F
Triadic#5F2330, #305F23
Split complementary#5F3423, #4E5F23
Tetradic#5F234E, #5F5223, #235F34

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7E90D0
Lighter +30%#5970C2
Lighter +20%#3E56AA
Lighter +10%#314384
Darker −10%#151D3A
Darker −20%#080A14
Darker −30%#000000
Darker −40%#000000
More saturated +25%#13276F
Less saturated −25%#33394F

Channel breakdown

R35
G48
B95
Red35 (13.7%)
Green48 (18.8%)
Blue95 (37.3%)
Hue227°
Saturation (HSL)46.15%
Lightness25.49%
Dominant channelBlue
Hex per channelR 23 · G 30 · B 5F

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Every value on this page was computed from “23305f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.