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Recognised as Colour

#FB1D22

  • #FB1D22
  • Red
  • Dark
  • Nearest: Red

#FB1D22 is a red with RGB values 251, 29, 34 and HSL 359°, 97%, 55%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FB1D22#FB1D22
HEX#FB1D22
RGBrgb(251, 29, 34)
RGB (0–1)0.9843, 0.1137, 0.1333
RGB percentages98.4%, 11.4%, 13.3%
HSLhsl(358.6, 96.5%, 54.9%)
HSV / HSBhsv(358.6, 88.4%, 98.4%)
CMYK0%, 88.4%, 86.5%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,456,994
CSS custom property--colour: #FB1D22;

Brightness & contrast

Relative luminance0.21503WCAG 2.x, 0 is black and 1 is white
Perceived brightness139.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.3:1
Contrast with white3.96:1WCAG normal text: Fail
Contrast with black5.3:1WCAG normal text: AA
Greyscale equivalent#4D4D4D
Inverted#04E2DD

Colour vision & accessibility

Protanopia#6E621Dno red cones; affects about 1% of men; ΔE 83.1 from the original
Deuteranopia#A2900Fno green cones; the most common form, about 1% of men; ΔE 82.7 from the original
Tritanopia#FF0024no blue cones; rare, and affects men and women equally; ΔE 3.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.96:1WCAG large text: AA
Contrast with black, large text5.3:1WCAG large text: AAA

Named colours

Nearest named CSS colourRed (#FF0000)ΔE 11.65, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1DFBF6
Analogous#FB1D91, #FB871D
Triadic#22FB1D, #1D22FB
Split complementary#1DFB87, #1D91FB
Tetradic#91FB1D, #1DFBF6, #871DFB

Tints, shades & saturation

Lighter +40%#FFE5E6
Lighter +30%#FEB3B5
Lighter +20%#FD8184
Lighter +10%#FC4F53
Darker −10%#E10409
Darker −20%#AF0307
Darker −30%#7D0205
Darker −40%#4B0103
More saturated +25%#FF191E
Less saturated −25%#DE3A3D

Channel breakdown

R251
G29
B34
Red251 (98.4%)
Green29 (11.4%)
Blue34 (13.3%)
Hue358.65°
Saturation (HSL)96.52%
Lightness54.9%
Dominant channelRed
Hex per channelR FB · G 1D · B 22

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Every value on this page was computed from “fb1d22” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.