#A1837B
Closest named color: Warm Grey (#978A84). oklch(63.6% 0.039 35.4), rgb(161, 131, 123).
Aa
Black text reads best on this color (6.04:1).
About this color
#A1837B is a medium-light, muted red. In OKLCH its lightness is 64%, its chroma 0.039 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Warm Grey (#978A84), ΔE 0.023 away. Black text reads best on it, at 6.04:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Warm Grey (#978A84) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #A1837B |
| RGB | rgb(161, 131, 123) |
| HSL | hsl(13, 17%, 56%) |
| OKLCH | oklch(63.6% 0.039 35.4) |
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 #A1837B | 3.47:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #A1837B | 6.04:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #A1837B text on white | 3.47:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #A1837B text on black | 6.04:1 | AA | Lc -39.4 | 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 500.
-
Step 50
50
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E7
oklch(93.7% 0.005 48.7)
-
Step 200
200
#E0D7D4
oklch(88.5% 0.011 39.4)
-
Step 300
300
#CCBDB8
oklch(80.9% 0.018 39.4)
-
Step 400
400
#B39A94
oklch(70.7% 0.031 33.7)
-
Step 500
500 (this color)
#A1837B
oklch(63.6% 0.039 35.4)
-
Step 600
600
#8A6B63
oklch(55.6% 0.042 34.9)
-
Step 700
700
#755952
oklch(49.1% 0.039 34.4)
-
Step 800
800
#5F4943
oklch(42.7% 0.032 35.8)
-
Step 900
900
#4E3D38
oklch(37.7% 0.025 37)
-
Step 950
950
#2E2421
oklch(27.1% 0.016 37.3)
#A1837B 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) | #8A867A | 0.036 |
| Deuteranopia (no green cones) | #918C7B | 0.034 |
| Tritanopia (no blue cones) | #A97F81 | 0.021 |
| Achromatopsia (no color) | #8A8A8A | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1837B
#A1837B
oklch(63.6% 0.039 35.4)
- #70919A
#70919A
oklch(63.5% 0.039 216.3)
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 #A1837B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Grey #978A84 ΔE 0.023
- English Lavender #9D8189 ΔE 0.024
- Reddish Grey #997570 ΔE 0.041
- Brown Grey #8D8468 ΔE 0.044
- Purpley Grey #947E94 ΔE 0.048
- Pinkish Brown #B17261 ΔE 0.050
- Puce #A57E52 ΔE 0.052
- Gray #808080 ΔE 0.053
Use #A1837B 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.