Nerdulator> put something in

Recognised as Colour

#33030A

  • #33030A
  • Red
  • Dark
  • Nearest: Black

#33030A is a red with RGB values 51, 3, 10 and HSL 351°, 89%, 11%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#33030A#33030A
HEX#33030A
RGBrgb(51, 3, 10)
RGB (0–1)0.2, 0.0118, 0.0392
RGB percentages20%, 1.2%, 3.9%
HSLhsl(351.3, 88.9%, 10.6%)
HSV / HSBhsv(351.3, 94.1%, 20%)
CMYK0%, 94.1%, 80.4%, 80%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,343,114
CSS custom property--colour: #33030A;

Brightness & contrast

Relative luminance0.00791WCAG 2.x, 0 is black and 1 is white
Perceived brightness28.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.13:1
Contrast with white18.13:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#0E0E0E
Inverted#CCFCF5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#100F0Ano red cones; affects about 1% of men; ΔE 25.4 from the original
Deuteranopia#1D1A09no green cones; the most common form, about 1% of men; ΔE 26.2 from the original
Tritanopia#390006no blue cones; rare, and affects men and women equally; ΔE 4.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.13:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 26.3Maroon · ΔE 43.1Dark slate grey · ΔE 44.7Dim grey · ΔE 45.1Saddle brown · ΔE 45.5Brown · ΔE 46
Nearest named CSS colourBlack (#000000)ΔE 26.33, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#03332C
Analogous#330322, #331403
Triadic#0A3303, #030A33
Split complementary#033314, #032233
Tetradic#223303, #03332C, #140333

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F11132
Lighter +30%#C40C26
Lighter +20%#93091D
Lighter +10%#630613
Darker −10%#030001
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#360008
Less saturated −25%#2C0A0F

Channel breakdown

R51
G3
B10
Red51 (20%)
Green3 (1.2%)
Blue10 (3.9%)
Hue351.25°
Saturation (HSL)88.89%
Lightness10.59%
Dominant channelRed
Hex per channelR 33 · G 03 · B 0A

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 “33030a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.