Nerdulator> put something in

Recognised as Colour

#FF440D

  • #FF440D
  • Red
  • Dark
  • Nearest: Orange red

#FF440D is a red with RGB values 255, 68, 13 and HSL 14°, 100%, 53%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FF440D#FF440D
HEX#FF440D
RGBrgb(255, 68, 13)
RGB (0–1)1, 0.2667, 0.051
RGB percentages100%, 26.7%, 5.1%
HSLhsl(13.6, 100%, 52.5%)
HSV / HSBhsv(13.6, 94.9%, 100%)
CMYK0%, 73.3%, 94.9%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,729,101
CSS custom property--colour: #FF440D;

Brightness & contrast

Relative luminance0.25423WCAG 2.x, 0 is black and 1 is white
Perceived brightness148.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.08:1
Contrast with white3.45:1WCAG normal text: Fail
Contrast with black6.08:1WCAG normal text: AA
Greyscale equivalent#686868
Inverted#00BBF2

Colour vision & accessibility

Protanopia#7F6F00no red cones; affects about 1% of men; ΔE 74.2 from the original
Deuteranopia#AD9900no green cones; the most common form, about 1% of men; ΔE 74.1 from the original
Tritanopia#FF003Cno blue cones; rare, and affects men and women equally; ΔE 26.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.45:1WCAG large text: AA
Contrast with black, large text6.08:1WCAG large text: AAA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 2.72, a close match
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0DC8FF
Analogous#FF0D4F, #FFBD0D
Triadic#0DFF44, #440DFF
Split complementary#0DFFBD, #0D4FFF
Tetradic#4FFF0D, #0DC8FF, #BD0DFF

Tints, shades & saturation

Lighter +40%#FFE2D9
Lighter +30%#FFBAA6
Lighter +20%#FF9373
Lighter +10%#FF6B40
Darker −10%#D93100
Darker −20%#A62600
Darker −30%#731A00
Darker −40%#400F00
More saturated +25%#FF440D
Less saturated −25%#E1542B

Channel breakdown

R255
G68
B13
Red255 (100%)
Green68 (26.7%)
Blue13 (5.1%)
Hue13.64°
Saturation (HSL)100%
Lightness52.55%
Dominant channelRed
Hex per channelR FF · G 44 · B 0D

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 “ff440d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.