redwarm
Firebrick #B22222
A muted brick red, less aggressive than pure red.
Use cases: Rustic designs · Masonry brands
Color values
| Format | Value | |
|---|---|---|
| HEX | #B22222 | |
| RGB | rgb(178, 34, 34) | |
| HSL | hsl(0, 68%, 42%) | |
| HSV | hsv(0, 81%, 70%) | |
| CMYK | cmyk(0%, 80.9%, 80.9%, 30.2%) | |
| XYZ | xyz(19.2232, 10.7277, 2.5715) | |
| CIE-LAB | lab(39.1, 55.9, 37.6) | |
| Luminance | 0.107 (WCAG relative) |
/* Firebrick */
color: #b22222;
background-color: #b22222;
Shade scale
Perceptual 50–950 scale, interpolated in CIE-LAB. Step 500 is the base color. Edit in the shade generator →
Shades (toward black)
#a01f1f #8e1b1b #7d1818 #6b1414 #591111 #470e0e #350a0a #240707 #120303 #000000
Tints (toward white)
#ba3838 #c14e4e #c96464 #d17a7a #d99191 #e0a7a7 #e8bdbd #f0d3d3 #f7e9e9 #ffffff
Tones (toward gray)
#ad2b2b #a83535 #a33e3e #9e4848 #995151 #945a5a #8f6464 #8a6d6d #857777 #808080
Color harmonies
Complementary
Edit in generator →#B22222
#22B2B2
#b22222 #22b2b2
Analogous
Edit in generator →#B2226A
#B22222
#B26A22
#b2226a #b22222 #b26a22
Triadic
Edit in generator →#B22222
#22B222
#2222B2
#b22222 #22b222 #2222b2
Tetradic
Edit in generator →#B22222
#6AB222
#22B2B2
#6A22B2
#b22222 #6ab222 #22b2b2 #6a22b2
Split Complementary
Edit in generator →#B22222
#22B26A
#226AB2
#b22222 #22b26a #226ab2
Monochromatic
Edit in generator →#4B0E0E
#7F1818
#B22222
#D93838
#E36C6C
#4b0e0e #7f1818 #b22222 #d93838 #e36c6c
Accessibility & contrast
6.68
#B22222 on #FFFFFF
AA text ✓AA large ✓AAA text ✗UI 3:1 ✓
3.15
#B22222 on #000000
AA text ✗AA large ✓AAA text ✗UI 3:1 ✓
Best text on firebrick
6.68
#FFFFFF text
WCAG 2.1: AA needs ≥4.5:1 for normal text, ≥3:1 for large text and UI components; AAA needs ≥7:1 / ≥4.5:1.
Color blindness preview
Simulation using the Machado et al. (2009) physiological model, severity 1.0. This is an approximation of perception — not a medical assessment.
Closest named colors
Nearest matches by CIEDE2000 perceptual distance (ΔE₀₀).
| Color | Name | ΔE₀₀ |
|---|---|---|
| Brown #A52A2A | 3.12 | |
| Cardinal #C41E3A | 7.00 | |
| Crimson #DC143C | 9.65 | |
| Rust #B7410E | 10.77 | |
| Maroon #800000 | 11.30 | |
| Sienna #A0522D | 12.48 |
Related colors
Palettes with firebrick
Values computed from the sRGB color model. CMYK is the naive sRGB conversion without an ICC profile. RGB percentages may differ between color-managed applications.