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Recognised as Colour

#230F17

  • #230F17
  • Red
  • Dark
  • Nearest: Black

#230F17 is a red with RGB values 35, 15, 23 and HSL 336°, 40%, 10%. It is a dark colour, so white text on it reaches 18.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#230F17#230F17
HEX#230F17
RGBrgb(35, 15, 23)
RGB (0–1)0.1373, 0.0588, 0.0902
RGB percentages13.7%, 5.9%, 9%
HSLhsl(336, 40%, 9.8%)
HSV / HSBhsv(336, 57.1%, 13.7%)
CMYK0%, 57.1%, 34.3%, 86.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,297,623
CSS custom property--colour: #230F17;

Brightness & contrast

Relative luminance0.00761WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.23:1
Contrast with white18.23:1WCAG normal text: AAA
Contrast with black1.15:1WCAG normal text: Fail
Greyscale equivalent#141414
Inverted#DCF0E8

Colour vision & accessibility

Protanopia#121317no red cones; affects about 1% of men; ΔE 11.3 from the original
Deuteranopia#171717no green cones; the most common form, about 1% of men; ΔE 11.7 from the original
Tritanopia#260E12no blue cones; rare, and affects men and women equally; ΔE 3.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.23:1WCAG large text: AAA
Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 13.57, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0F231B
Analogous#230F21, #23110F
Triadic#17230F, #0F1723
Split complementary#0F2311, #0F2123
Tetradic#21230F, #0F231B, #110F23

Tints, shades & saturation

Lighter +40%#B24C75
Lighter +30%#8E3D5D
Lighter +20%#6A2E46
Lighter +10%#471E2E
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#290916
Less saturated −25%#1D1518

Channel breakdown

R35
G15
B23
Red35 (13.7%)
Green15 (5.9%)
Blue23 (9%)
Hue336°
Saturation (HSL)40%
Lightness9.8%
Dominant channelRed
Hex per channelR 23 · G 0F · B 17

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Every value on this page was computed from “230f17” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.