Firebrick
Firebrick (#B4291A) is an intense dark color with a luminosity of 11%. It has a chroma value of 60.4 (out of 100). The closest web-safe color is #CC3333. The closest Pantone color is #BC322C, known as valiant-poppy (18-1549). The closest NCS color is #AA2D21, with the code NCS S 2570-Y80R. The grayscale version of this color is #515151. The contrast ratio with white is 6.4, and with black is 3.3. This meets the WCAG standard (4.5:1) for regular text (14pt) on a white background.
Lightness
Show relative
#FFFFFF
#F9D6D2
#F2ADA6
#EC8479
#E55C4D
#DF3320
#B2291A
#861E13
#59140D
#2D0A06
#000000
Saturation
#DB0A00
#D31000
#CB1603
#C31D0B
#BC2312
#B4291A
#AC2F22
#A53529
#9D3C31
#954239
#8E4841
Shade
#B43527
#B43224
#B43022
#B42E1F
#B42B1D
#B4291A
#AC281A
#A5281A
#9D271A
#96261A
#8F251A
Hue
#B41A1A
#B4341A
#B44D1A
#B4671A
#B4811A
#B49A1A
#B4B41A
#9AB41A
#81B41A
#67B41A
#4DB41A
#34B41A
#1AB41A
#1AB434
#1AB44D
#1AB467
#1AB481
#1AB49A
#1AB4B4
#1A9AB4
#1A81B4
#1A67B4
#1A4DB4
#1A34B4
#1A1AB4
#341AB4
#4D1AB4
#671AB4
#811AB4
#9A1AB4
#B41AB4
#B41A9A
#B41A81
#B41A67
#B41A4D
#B41A34
Grayscale
#515151
Complimentary
#4BD6E5
WCAG contrast conformance
#B4291A meets the WCAG standard (4.5:1) for regular text (14pt) on a white background.
On a white background
Firebrick
On a black background
Firebrick
Firebrick (#B4291A) does not meet the WCAG standard for either regular or large text on a mediumblue (#3606BE) background.
Firebrick
Composition
The colors that composes #B4291A
RGB
180
41
26
RYB
180
43
26
CMYK
0
77
86
29
CMY
29
84
90
Conversion
CSS values of #B4291A and various standards
CSS values
HEX
#B4291A
RGB
rgb(180, 41, 26)
HSL
hsl(6, 75%, 40%)
HWB
hwb(6, 10%, 29%)
Various standards
Ansi16
rgb(128, 0, 0)
Ansi256
rgb(204, 51, 51)
HCG
rgb(180, 41, 26)
Apple
rgb(180, 41, 26)
Closest Pantone color
valiant-poppy (18-1549)
#BC322C
Closest NCS color
NCS S 2570-Y80R
#AA2D21
Color harmonies
The basic color chords based on the color wheel
Split complementary
#1A58B4
#B4291A
#1AB476
Triadic
#B4291A
#1AB429
#291AB4
Tetradic
#B4291A
#58B41A
#1AA5B4
#761AB4
Analogous
#B41A58
#B4291A
#B4761A
Color blindness
Below is a simulation map of how people with vision deciciency perceive your color
Achromatopsia
#454545
Deuteranopia
#575716
Protanopia
#414119
Tritanopia
#B62727