#BB2701
Closest named color: Rusty Red (#AF2F0D). oklch(51.5% 0.188 33.3), rgb(187, 39, 1).
Aa
White text reads best on this color (6.16:1).
About this color
#BB2701 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.188 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.024 away. White text reads best on it, at 6.16:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.188) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #BB2701 |
| RGB | rgb(187, 39, 1) |
| HSL | hsl(12, 99%, 37%) |
| OKLCH | oklch(51.5% 0.188 33.3) |
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 #BB2701 | 6.16:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #BB2701 | 3.40:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #BB2701 text on white | 6.16:1 | AA | Lc 79.1 | Fine for body text |
| #BB2701 text on black | 3.40:1 | AA large text | Lc -22.7 | 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
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CEC4
oklch(88.6% 0.051 33.3)
-
Step 300
300
#F5AB9B
oklch(80.8% 0.091 32.6)
-
Step 400
400
#ED7B63
oklch(70.7% 0.146 33.1)
-
Step 500
500
#E35235
oklch(63% 0.186 33.2)
-
Step 600
600
#CF2D03
oklch(55.6% 0.202 33.3)
-
Step 700
700 (this color)
#BB2701
oklch(51.5% 0.188 33.3)
-
Step 800
800
#911C01
oklch(42.7% 0.156 33.2)
-
Step 900
900
#74200E
oklch(37.7% 0.121 33.6)
-
Step 950
950
#45140B
oklch(27% 0.078 32.5)
#BB2701 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) | #584C00 | 0.198 |
| Deuteranopia (no green cones) | #7C6D00 | 0.177 |
| Tritanopia (no blue cones) | #CF0023 | 0.049 |
| Achromatopsia (no color) | #616161 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB2701
#BB2701
oklch(51.5% 0.188 33.3)
- #007587
#007587
oklch(51.7% 0.09 213.2)
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 #BB2701, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.024
- Firebrick #B22222 ΔE 0.029
- Rufous #AE2012 ΔE 0.032
- Scarlet #BE0119 ΔE 0.032
- Sinopia #BB3E03 ΔE 0.034
- Rust Red #AA2704 ΔE 0.035
- Lipstick Red #C0022F ΔE 0.047
- Dull Red #BB3F3F ΔE 0.049
Use #BB2701 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.