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Recognised as Colour

#23238A

  • #23238A
  • Blue
  • Dark
  • Nearest: Midnight blue

#23238A is a blue with RGB values 35, 35, 138 and HSL 240°, 60%, 34%. It is a dark colour, so white text on it reaches 12.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#23238A#23238A
HEX#23238A
RGBrgb(35, 35, 138)
RGB (0–1)0.1373, 0.1373, 0.5412
RGB percentages13.7%, 13.7%, 54.1%
HSLhsl(240, 59.5%, 33.9%)
HSV / HSBhsv(240, 74.6%, 54.1%)
CMYK74.6%, 74.6%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,302,858
CSS custom property--colour: #23238A;

Brightness & contrast

Relative luminance0.03394WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.51:1
Contrast with white12.51:1WCAG normal text: AAA
Contrast with black1.68:1WCAG normal text: Fail
Greyscale equivalent#2A2A2A
Inverted#DCDC75

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00398Dno red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#002F88no green cones; the most common form, about 1% of men; ΔE 11.9 from the original
Tritanopia#004054no blue cones; rare, and affects men and women equally; ΔE 60.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.51:1WCAG large text: AAA
Contrast with black, large text1.68:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10Indigo · ΔE 16.2Rebecca purple · ΔE 16.4Navy · ΔE 16.5Dark slateblue · ΔE 19.9Dark blue · ΔE 20
Nearest named CSS colourMidnight blue (#191970)ΔE 10.03, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A8A23
Analogous#23578A, #57238A
Triadic#8A2323, #238A23
Split complementary#8A5723, #578A23
Tetradic#8A2357, #8A8A23, #238A57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9595E4
Lighter +30%#6C6CDA
Lighter +20%#4444CF
Lighter +10%#2D2DB3
Darker −10%#191961
Darker −20%#0E0E39
Darker −30%#040410
Darker −40%#000000
More saturated +25%#0D0DA0
Less saturated −25%#393974

Channel breakdown

R35
G35
B138
Red35 (13.7%)
Green35 (13.7%)
Blue138 (54.1%)
Hue240°
Saturation (HSL)59.54%
Lightness33.92%
Dominant channelBlue
Hex per channelR 23 · G 23 · B 8A

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Every value on this page was computed from “23238a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.