#B9210F
Closest named color: Firebrick (#B22222). oklch(50.8% 0.189 30.7), rgb(185, 33, 15).
Aa
White text reads best on this color (6.38:1).
About this color
#B9210F is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.189 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.019 away. White text reads best on it, at 6.38:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.28:1 |
| White text | 6.38:1 |
Values
| HEX | #B9210F |
| RGB | rgb(185, 33, 15) |
| HSL | hsl(6, 85%, 39%) |
| OKLCH | oklch(50.8% 0.189 30.7) |
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 #B9210F | 6.38:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #B9210F | 3.28:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #B9210F text on white | 6.38:1 | AA | Lc 80.0 | Fine for body text |
| #B9210F text on black | 3.28:1 | AA large text | Lc -21.9 | 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
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CDC5
oklch(88.4% 0.051 30.1)
-
Step 300
300
#F6AB9D
oklch(81% 0.091 30.9)
-
Step 400
400
#ED7A67
oklch(70.7% 0.146 30.8)
-
Step 500
500
#E4513C
oklch(63.1% 0.186 30.9)
-
Step 600
600
#D02A17
oklch(55.7% 0.203 30.6)
-
Step 700
700 (this color)
#B9210F
oklch(50.8% 0.189 30.7)
-
Step 800
800
#911A0C
oklch(42.6% 0.156 30.7)
-
Step 900
900
#751F14
oklch(37.8% 0.122 30.7)
-
Step 950
950
#45140D
oklch(27.1% 0.077 30.8)
#B9210F 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) | #544A08 | 0.204 |
| Deuteranopia (no green cones) | #796B00 | 0.183 |
| Tritanopia (no blue cones) | #CC0020 | 0.042 |
| Achromatopsia (no color) | #5F5F5F | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9210F
#B9210F
oklch(50.8% 0.189 30.7)
- #007382
#007382
oklch(50.9% 0.088 210.5)
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 #B9210F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.019
- Scarlet #BE0119 ΔE 0.023
- Rufous #AE2012 ΔE 0.023
- Rusty Red #AF2F0D ΔE 0.024
- Rust Red #AA2704 ΔE 0.031
- Lipstick Red #C0022F ΔE 0.038
- Brown #A52A2A ΔE 0.043
- Sinopia #BB3E03 ΔE 0.044
Use #B9210F 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.