Nerdulator> put something in

Recognised as Colour

#170A23

  • #170A23
  • Violet
  • Dark
  • Nearest: Black

#170A23 is a violet with RGB values 23, 10, 35 and HSL 271°, 56%, 9%. It is a dark colour, so white text on it reaches 19:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#170A23#170A23
HEX#170A23
RGBrgb(23, 10, 35)
RGB (0–1)0.0902, 0.0392, 0.1373
RGB percentages9%, 3.9%, 13.7%
HSLhsl(271.2, 55.6%, 8.8%)
HSV / HSBhsv(271.2, 71.4%, 13.7%)
CMYK34.3%, 71.4%, 0%, 86.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,509,923
CSS custom property--colour: #170A23;

Brightness & contrast

Relative luminance0.00521WCAG 2.x, 0 is black and 1 is white
Perceived brightness18.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.02:1
Contrast with white19.02:1WCAG normal text: AAA
Contrast with black1.1:1WCAG normal text: Fail
Greyscale equivalent#0F0F0F
Inverted#E8F5DC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#031024no red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#061022no green cones; the most common form, about 1% of men; ΔE 9 from the original
Tritanopia#150F15no blue cones; rare, and affects men and women equally; ΔE 13.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.02:1WCAG large text: AAA
Contrast with black, large text1.1:1WCAG large text: Fail

Named colours

Black · ΔE 18.3Dark slate grey · ΔE 36.4Dark slateblue · ΔE 41.3Midnight blue · ΔE 42.8Dim grey · ΔE 43.5Slate grey · ΔE 50
Nearest named CSS colourBlack (#000000)ΔE 18.31, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#16230A
Analogous#0B0A23, #230A22
Triadic#23170A, #0A2317
Split complementary#23230A, #0A230B
Tetradic#230A0A, #16230A, #0A2223

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7F37C2
Lighter +30%#652C9A
Lighter +20%#4B2172
Lighter +10%#31154B
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#170429
Less saturated −25%#17101D

Channel breakdown

R23
G10
B35
Red23 (9%)
Green10 (3.9%)
Blue35 (13.7%)
Hue271.2°
Saturation (HSL)55.56%
Lightness8.82%
Dominant channelBlue
Hex per channelR 17 · G 0A · B 23

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “170a23” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.