#636151
Closest named color: Dim Gray (#696969). oklch(49% 0.025 101.4), rgb(99, 97, 81).
Aa
White text reads best on this color (6.25:1).
About this color
#636151 is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.040 away. White text reads best on it, at 6.25:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.35:1 |
| White text | 6.25:1 |
Values
| HEX | #636151 |
| RGB | rgb(99, 97, 81) |
| HSL | hsl(53, 10%, 35%) |
| OKLCH | oklch(49% 0.025 101.4) |
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 #636151 | 6.25:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #636151 | 3.35:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #636151 text on white | 6.25:1 | AA | Lc 81.2 | Fine for body text |
| #636151 text on black | 3.35:1 | AA large text | Lc -20.7 | 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
#F5F5F4
oklch(97% 0.001 106.4)
-
Step 100
100
#EAEAE7
oklch(93.6% 0.004 106.5)
-
Step 200
200
#DAD9D4
oklch(88.5% 0.007 97.4)
-
Step 300
300
#C2C1B8
oklch(80.9% 0.012 101.5)
-
Step 400
400
#A3A194
oklch(70.7% 0.019 99.7)
-
Step 500
500
#8C8A79
oklch(63% 0.025 101.6)
-
Step 600
600
#767462
oklch(55.5% 0.027 102)
-
Step 700
700 (this color)
#636151
oklch(49% 0.025 101.4)
-
Step 800
800
#515043
oklch(42.8% 0.021 103.6)
-
Step 900
900
#434238
oklch(37.7% 0.017 102.5)
-
Step 950
950
#272721
oklch(27.1% 0.011 107.1)
#636151 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) | #646050 | 0.003 |
| Deuteranopia (no green cones) | #656152 | 0.004 |
| Tritanopia (no blue cones) | #665F5D | 0.023 |
| Achromatopsia (no color) | #606060 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #636151
#636151
oklch(49% 0.025 101.4)
- #5E5F6E
#5E5F6E
oklch(49% 0.024 282.5)
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 #636151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.040
- Dark Taupe #7F684E ΔE 0.053
- Slate #516572 ΔE 0.053
- Dark Moss Green #606C38 ΔE 0.056
- Cocoa #875F42 ΔE 0.061
- Dirt Brown #836539 ΔE 0.063
- Grey Brown #7F7053 ΔE 0.066
- Mud #735C12 ΔE 0.068
Use #636151 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.