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Recognised as Colour

#1D1117

  • #1D1117
  • Red
  • Dark
  • Nearest: Black

#1D1117 is a red with RGB values 29, 17, 23 and HSL 330°, 26%, 9%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1D1117#1D1117
HEX#1D1117
RGBrgb(29, 17, 23)
RGB (0–1)0.1137, 0.0667, 0.0902
RGB percentages11.4%, 6.7%, 9%
HSLhsl(330, 26.1%, 9%)
HSV / HSBhsv(330, 41.4%, 11.4%)
CMYK0%, 41.4%, 20.7%, 88.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,904,919
CSS custom property--colour: #1D1117;

Brightness & contrast

Relative luminance0.00724WCAG 2.x, 0 is black and 1 is white
Perceived brightness21.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.34:1
Contrast with white18.34:1WCAG normal text: AAA
Contrast with black1.14:1WCAG normal text: Fail
Greyscale equivalent#141414
Inverted#E2EEE8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#121317no red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#151517no green cones; the most common form, about 1% of men; ΔE 6.6 from the original
Tritanopia#1F1113no blue cones; rare, and affects men and women equally; ΔE 3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.34:1WCAG large text: AAA
Contrast with black, large text1.14:1WCAG large text: Fail

Named colours

Black · ΔE 9.8Dark slate grey · ΔE 31.1Dim grey · ΔE 38.6Gray · ΔE 47.6Slate grey · ΔE 48Dark slateblue · ΔE 50.8
Nearest named CSS colourBlack (#000000)ΔE 9.8, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#111D17
Analogous#1D111D, #1D1111
Triadic#171D11, #11171D
Split complementary#111D11, #111D1D
Tetradic#1D1D11, #111D17, #11111D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9E5C7D
Lighter +30%#7D4A63
Lighter +20%#5D374A
Lighter +10%#3D2431
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#230B17
Less saturated −25%#171717

Channel breakdown

R29
G17
B23
Red29 (11.4%)
Green17 (6.7%)
Blue23 (9%)
Hue330°
Saturation (HSL)26.09%
Lightness9.02%
Dominant channelRed
Hex per channelR 1D · G 11 · B 17

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Every value on this page was computed from “1d1117” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.