#837170
Closest named color: Purple Grey (#866F85). oklch(56.5% 0.023 21.6), rgb(131, 113, 112).
Aa
White text reads best on this color (4.60:1).
About this color
#837170 is a medium-dark close to neutral grey. In OKLCH its lightness is 57%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Purple Grey (#866F85), ΔE 0.036 away. White text reads best on it, at 4.60:1.
| Hue family | Neutrals |
| Lightness | medium-dark (57%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Purple Grey (#866F85) |
| Black text | 4.56:1 |
| White text | 4.60:1 |
Values
| HEX | #837170 |
| RGB | rgb(131, 113, 112) |
| HSL | hsl(3, 8%, 48%) |
| OKLCH | oklch(56.5% 0.023 21.6) |
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 #837170 | 4.60:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #837170 | 4.56:1 | AA | Lc 32.1 | Non-text elements, placeholder text |
| #837170 text on white | 4.60:1 | AA | Lc 72.0 | Content text, not long reading |
| #837170 text on black | 4.56:1 | AA | Lc -29.7 | 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 600.
-
Step 50
50
#F6F5F5
oklch(97.1% 0.001 17.2)
-
Step 100
100
#ECE9E9
oklch(93.6% 0.003 17.2)
-
Step 200
200
#DDD8D7
oklch(88.6% 0.006 31.1)
-
Step 300
300
#C7BEBE
oklch(80.9% 0.01 17.4)
-
Step 400
400
#AB9D9C
oklch(70.8% 0.017 22.5)
-
Step 500
500
#968584
oklch(63.2% 0.021 21.8)
-
Step 600
600 (this color)
#837170
oklch(56.5% 0.023 21.6)
-
Step 700
700
#6C5C5B
oklch(49% 0.021 22.1)
-
Step 800
800
#584B4B
oklch(42.6% 0.018 17.9)
-
Step 900
900
#493F3E
oklch(37.8% 0.014 24.6)
-
Step 950
950
#2B2525
oklch(27.1% 0.009 17.7)
#837170 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) | #747370 | 0.024 |
| Deuteranopia (no green cones) | #787670 | 0.021 |
| Tritanopia (no blue cones) | #876F71 | 0.009 |
| Achromatopsia (no color) | #757575 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #837170
#837170
oklch(56.5% 0.023 21.6)
- #677A7C
#677A7C
oklch(56.5% 0.023 204.3)
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 #837170, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Grey #866F85 ΔE 0.036
- Battleship Gray #6C757D ΔE 0.037
- Medium Grey #7D7F7C ΔE 0.038
- Reddish Grey #997570 ΔE 0.039
- Gray #808080 ΔE 0.041
- Grey Brown #7F7053 ΔE 0.043
- Battleship Grey #6B7C85 ΔE 0.047
- Grey Purple #826D8C ΔE 0.049
Use #837170 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.