#51544A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(44% 0.016 120.7), rgb(81, 84, 74).
Aa
White text reads best on this color (7.72:1).
About this color
#51544A is a dark close to neutral grey. In OKLCH its lightness is 44%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.052 away. White text reads best on it, at 7.72:1.
| Hue family | Neutrals |
| Lightness | dark (44%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.71:1 |
| White text | 7.72:1 |
Values
| HEX | #51544A |
| RGB | rgb(81, 84, 74) |
| HSL | hsl(78, 6%, 31%) |
| OKLCH | oklch(44% 0.016 120.7) |
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 #51544A | 7.72:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #51544A | 2.71:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #51544A text on white | 7.72:1 | AAA | Lc 86.9 | Fine for body text |
| #51544A text on black | 2.71:1 | Fails | Lc -15.2 | 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 800.
-
Step 50
50
#F5F5F5
oklch(97% 0 0)
-
Step 100
100
#E9EAE8
oklch(93.6% 0.003 128.5)
-
Step 200
200
#D8DAD6
oklch(88.6% 0.006 128.5)
-
Step 300
300
#BFC2BB
oklch(81% 0.01 125.7)
-
Step 400
400
#9FA298
oklch(70.7% 0.015 120.4)
-
Step 500
500
#878B7E
oklch(63% 0.02 120.9)
-
Step 600
600
#717568
oklch(55.5% 0.02 121)
-
Step 700
700
#5F6356
oklch(49.2% 0.021 121.1)
-
Step 800
800 (this color)
#51544A
oklch(44% 0.016 120.7)
-
Step 900
900
#40433B
oklch(37.7% 0.014 123.8)
-
Step 950
950
#262723
oklch(27% 0.007 118.3)
#51544A 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) | #555349 | 0.007 |
| Deuteranopia (no green cones) | #55534A | 0.007 |
| Tritanopia (no blue cones) | #525351 | 0.013 |
| Achromatopsia (no color) | #535353 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51544A
#51544A
oklch(44% 0.016 120.7)
- #54515A
#54515A
oklch(44.1% 0.015 300.9)
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 #51544A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.052
- Dark Green Blue #1F6357 ΔE 0.065
- Slate #516572 ΔE 0.069
- Dusty Grape #545775 ΔE 0.070
- Mud Brown #60460F ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.071
- YInMn Blue #415A77 ΔE 0.071
- Pine #2B5D34 ΔE 0.072
Use #51544A 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.