Nerdulator> put something in

Recognised as Colour

#644C52

  • #644C52
  • Red
  • Dark
  • Nearest: Dim grey

#644C52 is a red with RGB values 100, 76, 82 and HSL 345°, 14%, 35%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#644C52#644C52
HEX#644C52
RGBrgb(100, 76, 82)
RGB (0–1)0.3922, 0.298, 0.3216
RGB percentages39.2%, 29.8%, 32.2%
HSLhsl(345, 13.6%, 34.5%)
HSV / HSBhsv(345, 24%, 39.2%)
CMYK0%, 24%, 18%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,573,138
CSS custom property--colour: #644C52;

Brightness & contrast

Relative luminance0.08487WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.79:1
Contrast with white7.79:1WCAG normal text: AAA
Contrast with black2.7:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#9BB3AD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4F5052no red cones; affects about 1% of men; ΔE 11.3 from the original
Deuteranopia#555452no green cones; the most common form, about 1% of men; ΔE 11.3 from the original
Tritanopia#684B4Eno blue cones; rare, and affects men and women equally; ΔE 3.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.79:1WCAG large text: AAA
Contrast with black, large text2.7:1WCAG large text: Fail

Named colours

Dim grey · ΔE 14.6Gray · ΔE 21.7Dark slate grey · ΔE 23.6Slate grey · ΔE 24.8Light slate grey · ΔE 27.4Rosy brown · ΔE 29.9
Nearest named CSS colourDim grey (#696969)ΔE 14.64, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4C645E
Analogous#644C5E, #64524C
Triadic#52644C, #4C5264
Split complementary#4C6452, #4C5E64
Tetradic#5E644C, #4C645E, #524C64

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C7B5BA
Lighter +30%#B1989E
Lighter +20%#9B7B83
Lighter +10%#81626A
Darker −10%#47363A
Darker −20%#2A2022
Darker −30%#0D0A0B
Darker −40%#000000
More saturated +25%#7A3647
Less saturated −25%#585858

Channel breakdown

R100
G76
B82
Red100 (39.2%)
Green76 (29.8%)
Blue82 (32.2%)
Hue345°
Saturation (HSL)13.64%
Lightness34.51%
Dominant channelRed
Hex per channelR 64 · G 4C · B 52

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 “644c52” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.