#B4645B
Closest named color: Clay (#B66A50). oklch(59.2% 0.105 27.4), rgb(180, 100, 91).
Aa
Black text reads best on this color (4.91:1).
About this color
#B4645B is a medium-dark, moderately saturated red. In OKLCH its lightness is 59%, its chroma 0.105 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Clay (#B66A50), ΔE 0.025 away. Black text reads best on it, at 4.91:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.105) |
| Temperature | warm |
| Nearest name | Clay (#B66A50) |
| Black text | 4.91:1 |
| White text | 4.27:1 |
Values
| HEX | #B4645B |
| RGB | rgb(180, 100, 91) |
| HSL | hsl(6, 37%, 53%) |
| OKLCH | oklch(59.2% 0.105 27.4) |
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 #B4645B | 4.27:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #B4645B | 4.91:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #B4645B text on white | 4.27:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #B4645B text on black | 4.91:1 | AA | Lc -32.4 | 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 600.
-
Step 50
50
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F3E7E5
oklch(93.7% 0.013 28.9)
-
Step 200
200
#EAD3D0
oklch(88.5% 0.026 26.6)
-
Step 300
300
#DEB6B0
oklch(81% 0.047 28.1)
-
Step 400
400
#CC8F87
oklch(70.8% 0.076 27.5)
-
Step 500
500
#BD7269
oklch(63.1% 0.097 27.5)
-
Step 600
600 (this color)
#B4645B
oklch(59.2% 0.105 27.4)
-
Step 700
700
#904941
oklch(49.1% 0.098 27.8)
-
Step 800
800
#753C36
oklch(42.7% 0.081 27.2)
-
Step 900
900
#5F342F
oklch(37.8% 0.063 27.5)
-
Step 950
950
#381F1C
oklch(27.2% 0.04 27.3)
#B4645B 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) | #76705A | 0.108 |
| Deuteranopia (no green cones) | #8A815A | 0.100 |
| Tritanopia (no blue cones) | #C35862 | 0.040 |
| Achromatopsia (no color) | #7A7A7A | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4645B
#B4645B
oklch(59.2% 0.105 27.4)
- #008E9D
#008E9D
oklch(59.1% 0.102 207.9)
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 #B4645B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clay #B66A50 ΔE 0.025
- Pinkish Brown #B17261 ΔE 0.033
- Dusky Rose #BA6873 ΔE 0.035
- Adobe #BD6C48 ΔE 0.040
- Indian Red #CD5C5C ΔE 0.047
- Terracotta #CA6641 ΔE 0.051
- Earth #A2653E ΔE 0.052
- Terra Cotta #C9643B ΔE 0.052
Use #B4645B 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.