#BB637A
Closest named color: Dusky Rose (#BA6873). oklch(60.8% 0.115 4.4), rgb(187, 99, 122).
Aa
Black text reads best on this color (5.17:1).
About this color
#BB637A is a medium-dark, moderately saturated red. In OKLCH its lightness is 61%, its chroma 0.115 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Dusky Rose (#BA6873), ΔE 0.018 away. Black text reads best on it, at 5.17:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.115) |
| Temperature | warm |
| Nearest name | Dusky Rose (#BA6873) |
| Black text | 5.17:1 |
| White text | 4.05:1 |
Values
| HEX | #BB637A |
| RGB | rgb(187, 99, 122) |
| HSL | hsl(344, 39%, 56%) |
| OKLCH | oklch(60.8% 0.115 4.4) |
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 #BB637A | 4.05:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #BB637A | 5.17:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #BB637A text on white | 4.05:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #BB637A text on black | 5.17:1 | AA | Lc -34.2 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#FAF3F5
oklch(97% 0.008 357.8)
-
Step 100
100
#F4E6E8
oklch(93.7% 0.015 7.5)
-
Step 200
200
#ECD1D6
oklch(88.4% 0.031 5.1)
-
Step 300
300
#E1B2BC
oklch(80.9% 0.056 4.2)
-
Step 400
400
#D1899A
oklch(70.8% 0.09 4.2)
-
Step 500
500 (this color)
#BB637A
oklch(60.8% 0.115 4.4)
-
Step 600
600
#AE506A
oklch(55.6% 0.125 4.6)
-
Step 700
700
#954058
oklch(49.1% 0.117 4.7)
-
Step 800
800
#793548
oklch(42.6% 0.097 4.5)
-
Step 900
900
#622F3D
oklch(37.7% 0.075 3.9)
-
Step 950
950
#3A1C23
oklch(27.1% 0.048 5.8)
#BB637A 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) | #72747B | 0.126 |
| Deuteranopia (no green cones) | #888478 | 0.116 |
| Tritanopia (no blue cones) | #C85C6B | 0.030 |
| Achromatopsia (no color) | #7E7E7E | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB637A
#BB637A
oklch(60.8% 0.115 4.4)
- #00978A
#00978A
oklch(60.8% 0.108 184.2)
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 #BB637A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Rose #BA6873 ΔE 0.018
- Mauve #AE7181 ΔE 0.037
- Dusty Rose #C0737A ΔE 0.041
- Indian Red #CD5C5C ΔE 0.050
- Deep Rose #C74767 ΔE 0.056
- Old Pink #C77986 ΔE 0.058
- Pinkish Brown #B17261 ΔE 0.062
- Dark Rose #B5485D ΔE 0.064
Use #BB637A 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.