#3E515A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.3% 0.028 228.5), rgb(62, 81, 90).
Aa
White text reads best on this color (8.30:1).
About this color
#3E515A is a dark close to neutral grey. In OKLCH its lightness is 42%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.028 away. White text reads best on it, at 8.30:1.
| Hue family | Neutrals |
| Lightness | dark (42%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.52:1 |
| White text | 8.30:1 |
Values
| HEX | #3E515A |
| RGB | rgb(62, 81, 90) |
| HSL | hsl(199, 18%, 30%) |
| OKLCH | oklch(42.3% 0.028 228.5) |
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 #3E515A | 8.30:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #3E515A | 2.52:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #3E515A text on white | 8.30:1 | AAA | Lc 88.7 | Fine for body text |
| #3E515A text on black | 2.52:1 | Fails | Lc -13.5 | 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 800.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D3DADE
oklch(88.4% 0.009 232.4)
-
Step 300
300
#B6C3C9
oklch(80.9% 0.017 227)
-
Step 400
400
#90A4AE
oklch(70.6% 0.027 229.3)
-
Step 500
500
#758E9A
oklch(63.1% 0.034 228.5)
-
Step 600
600
#5D7884
oklch(55.6% 0.036 226.9)
-
Step 700
700
#4D6570
oklch(49.2% 0.034 227.7)
-
Step 800
800 (this color)
#3E515A
oklch(42.3% 0.028 228.5)
-
Step 900
900
#36444B
oklch(37.7% 0.022 229.7)
-
Step 950
950
#20282C
oklch(27.1% 0.014 229.5)
#3E515A 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) | #4C505A | 0.020 |
| Deuteranopia (no green cones) | #484D5A | 0.018 |
| Tritanopia (no blue cones) | #355454 | 0.020 |
| Achromatopsia (no color) | #4E4E4E | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E515A
#3E515A
oklch(42.3% 0.028 228.5)
- #5B4941
#5B4941
oklch(42.2% 0.028 45.3)
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 #3E515A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.048
- Deep Teal #00555A ΔE 0.048
- Charcoal #264653 ΔE 0.050
- YInMn Blue #415A77 ΔE 0.050
- Petrol #005F6A ΔE 0.056
- Charcoal Grey #3C4142 ΔE 0.056
- Dusty Grape #545775 ΔE 0.058
Use #3E515A 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.