#B22E04
Closest named color: Rusty Red (#AF2F0D). oklch(50.5% 0.174 35.1), rgb(178, 46, 4).
Aa
White text reads best on this color (6.39:1).
About this color
#B22E04 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.174 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.006 away. White text reads best on it, at 6.39:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.28:1 |
| White text | 6.39:1 |
Values
| HEX | #B22E04 |
| RGB | rgb(178, 46, 4) |
| HSL | hsl(14, 96%, 36%) |
| OKLCH | oklch(50.5% 0.174 35.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #B22E04 | 6.39:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #B22E04 | 3.28:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #B22E04 text on white | 6.39:1 | AA | Lc 80.4 | Fine for body text |
| #B22E04 text on black | 3.28:1 | AA large text | Lc -21.5 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE5DF
oklch(93.7% 0.025 36.5)
-
Step 200
200
#F6CFC5
oklch(88.5% 0.046 34.7)
-
Step 300
300
#F2AE9C
oklch(81% 0.084 35.4)
-
Step 400
400
#E87F65
oklch(70.7% 0.135 34.9)
-
Step 500
500
#DD5939
oklch(63% 0.172 34.9)
-
Step 600
600
#C9390E
oklch(55.7% 0.187 35.2)
-
Step 700
700 (this color)
#B22E04
oklch(50.5% 0.174 35.1)
-
Step 800
800
#8D2406
oklch(42.7% 0.145 34.9)
-
Step 900
900
#712411
oklch(37.6% 0.113 34.9)
-
Step 950
950
#43170C
oklch(27.1% 0.071 35.2)
#B22E04 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #574C00 | 0.182 |
| Deuteranopia (no green cones) | #786A00 | 0.163 |
| Tritanopia (no blue cones) | #C50028 | 0.056 |
| Achromatopsia (no color) | #5F5F5F | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B22E04
#B22E04
oklch(50.5% 0.174 35.1)
- #007184
#007184
oklch(50.5% 0.089 214.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #B22E04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.006
- Rust Red #AA2704 ΔE 0.022
- Rufous #AE2012 ΔE 0.024
- Firebrick #B22222 ΔE 0.027
- Sinopia #BB3E03 ΔE 0.035
- Russet #A13905 ΔE 0.035
- Brick #A03623 ΔE 0.037
- Brown #A52A2A ΔE 0.040
Use #B22E04 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.