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Recognised as Colour

#17234E

  • #17234E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#17234E is a blue with RGB values 23, 35, 78 and HSL 227°, 54%, 20%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#17234E#17234E
HEX#17234E
RGBrgb(23, 35, 78)
RGB (0–1)0.0902, 0.1373, 0.3059
RGB percentages9%, 13.7%, 30.6%
HSLhsl(226.9, 54.5%, 19.8%)
HSV / HSBhsv(226.9, 70.5%, 30.6%)
CMYK70.5%, 55.1%, 0%, 69.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,516,366
CSS custom property--colour: #17234E;

Brightness & contrast

Relative luminance0.01934WCAG 2.x, 0 is black and 1 is white
Perceived brightness39.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.14:1
Contrast with white15.14:1WCAG normal text: AAA
Contrast with black1.39:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#E8DCB1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0B2950no red cones; affects about 1% of men; ΔE 5.9 from the original
Deuteranopia#01244Dno green cones; the most common form, about 1% of men; ΔE 4.6 from the original
Tritanopia#002D34no blue cones; rare, and affects men and women equally; ΔE 29.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.14:1WCAG large text: AAA
Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 25.8Midnight blue · ΔE 29.8Black · ΔE 33.8Dark slate grey · ΔE 37.1Steel blue · ΔE 40.5Rebecca purple · ΔE 41.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E4217
Analogous#173F4E, #26174E
Triadic#4E1723, #234E17
Split complementary#4E2617, #3F4E17
Tetradic#4E173F, #4E4217, #174E26

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6179D0
Lighter +30%#3A58C4
Lighter +20%#2E469D
Lighter +10%#233575
Darker −10%#0B1127
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0A1C5B
Less saturated −25%#242A41

Channel breakdown

R23
G35
B78
Red23 (9%)
Green35 (13.7%)
Blue78 (30.6%)
Hue226.91°
Saturation (HSL)54.46%
Lightness19.8%
Dominant channelBlue
Hex per channelR 17 · G 23 · B 4E

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Every value on this page was computed from “17234e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.