#503D3F
Closest named color: Charcoal Grey (#3C4142). oklch(38.1% 0.027 11.3), rgb(80, 61, 63).
Aa
White text reads best on this color (10.09:1).
About this color
#503D3F is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.035 away. White text reads best on it, at 10.09:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.08:1 |
| White text | 10.09:1 |
Values
| HEX | #503D3F |
| RGB | rgb(80, 61, 63) |
| HSL | hsl(354, 13%, 28%) |
| OKLCH | oklch(38.1% 0.027 11.3) |
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 #503D3F | 10.09:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #503D3F | 2.08:1 | Fails | Lc 10.5 | Not readable |
| #503D3F text on white | 10.09:1 | AAA | Lc 93.4 | Preferred for body text |
| #503D3F text on black | 2.08:1 | Fails | Lc -9.1 | Not readable |
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 900.
-
Step 50
50
#F7F5F5
oklch(97.2% 0.002 17.2)
-
Step 100
100
#EEE8E9
oklch(93.6% 0.007 5.6)
-
Step 200
200
#E0D6D7
oklch(88.4% 0.011 10.4)
-
Step 300
300
#CDBCBD
oklch(81% 0.019 13.5)
-
Step 400
400
#B4999B
oklch(70.8% 0.032 12.9)
-
Step 500
500
#A18083
oklch(63.2% 0.041 12.2)
-
Step 600
600
#8B696D
oklch(55.6% 0.044 10.7)
-
Step 700
700
#76575B
oklch(49% 0.041 10.1)
-
Step 800
800
#60474A
oklch(42.6% 0.035 10.6)
-
Step 900
900 (this color)
#503D3F
oklch(38.1% 0.027 11.3)
-
Step 950
950
#2E2324
oklch(26.9% 0.017 12.1)
#503D3F 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) | #40403F | 0.029 |
| Deuteranopia (no green cones) | #44433F | 0.027 |
| Tritanopia (no blue cones) | #543C3E | 0.008 |
| Achromatopsia (no color) | #424242 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #503D3F
#503D3F
oklch(38.1% 0.027 11.3)
- #324746
#324746
oklch(38% 0.026 192.4)
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 #503D3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.035
- Purple Brown #673A3F ΔE 0.044
- Onyx #343A40 ΔE 0.051
- Charcoal #264653 ΔE 0.068
- Dark Slate Gray #2F4F4F ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.071
- Mud Brown #60460F ΔE 0.079
- Brownish Purple #76424E ΔE 0.079
Use #503D3F 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.