#364D50
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.3% 0.029 206.2), rgb(54, 77, 80).
Aa
White text reads best on this color (8.99:1).
About this color
#364D50 is a dark close to neutral grey. In OKLCH its lightness is 40%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.011 away. White text reads best on it, at 8.99:1.
| Hue family | Neutrals |
| Lightness | dark (40%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #364D50 |
| RGB | rgb(54, 77, 80) |
| HSL | hsl(187, 19%, 26%) |
| OKLCH | oklch(40.3% 0.029 206.2) |
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 #364D50 | 8.99:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #364D50 | 2.33:1 | Fails | Lc 13.3 | Not readable |
| #364D50 text on white | 8.99:1 | AAA | Lc 90.6 | Preferred for body text |
| #364D50 text on black | 2.33:1 | Fails | Lc -11.7 | 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
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D2DBDC
oklch(88.5% 0.01 204.9)
-
Step 300
300
#B5C4C6
oklch(80.9% 0.017 206.4)
-
Step 400
400
#8EA6A9
oklch(70.8% 0.027 205.8)
-
Step 500
500
#729094
oklch(63.2% 0.034 206.3)
-
Step 600
600
#5A7A7E
oklch(55.6% 0.037 205.7)
-
Step 700
700
#49676A
oklch(49.2% 0.035 203.8)
-
Step 800
800 (this color)
#364D50
oklch(40.3% 0.029 206.2)
-
Step 900
900
#344547
oklch(37.7% 0.022 205.2)
-
Step 950
950
#1F292A
oklch(27.2% 0.014 203.9)
#364D50 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) | #494B50 | 0.028 |
| Deuteranopia (no green cones) | #454850 | 0.026 |
| Tritanopia (no blue cones) | #2D4F4E | 0.013 |
| Achromatopsia (no color) | #494949 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364D50
#364D50
oklch(40.3% 0.029 206.2)
- #574340
#574340
oklch(40.3% 0.028 28.2)
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 #364D50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.011
- Charcoal #264653 ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.038
- Deep Teal #00555A ΔE 0.042
- Dark Teal #014D4E ΔE 0.042
- Dark Blue Green #005249 ΔE 0.047
- Onyx #343A40 ΔE 0.061
Use #364D50 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.