#455150
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.4% 0.015 190.5), rgb(69, 81, 80).
Aa
White text reads best on this color (8.24:1).
About this color
#455150 is a dark close to neutral grey. In OKLCH its lightness is 42%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.031 away. White text reads best on it, at 8.24:1.
| Hue family | Neutrals |
| Lightness | dark (42%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.54:1 |
| White text | 8.24:1 |
Values
| HEX | #455150 |
| RGB | rgb(69, 81, 80) |
| HSL | hsl(175, 8%, 29%) |
| OKLCH | oklch(42.4% 0.015 190.5) |
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 #455150 | 8.24:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #455150 | 2.54:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #455150 text on white | 8.24:1 | AAA | Lc 88.5 | Fine for body text |
| #455150 text on black | 2.54:1 | Fails | Lc -13.7 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D6DADA
oklch(88.5% 0.004 197.1)
-
Step 300
300
#BAC2C2
oklch(80.8% 0.009 197)
-
Step 400
400
#97A4A2
oklch(70.8% 0.015 185.8)
-
Step 500
500
#7D8D8C
oklch(63% 0.019 192.1)
-
Step 600
600
#677776
oklch(55.6% 0.019 192)
-
Step 700
700
#556463
oklch(49% 0.018 191.6)
-
Step 800
800 (this color)
#455150
oklch(42.4% 0.015 190.5)
-
Step 900
900
#3B4443
oklch(37.8% 0.012 188.5)
-
Step 950
950
#222827
oklch(27.1% 0.009 184.6)
#455150 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) | #505050 | 0.017 |
| Deuteranopia (no green cones) | #4D4E50 | 0.015 |
| Tritanopia (no blue cones) | #425251 | 0.005 |
| Achromatopsia (no color) | #4F4F4F | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455150
#455150
oklch(42.4% 0.015 190.5)
- #564B4C
#564B4C
oklch(42.4% 0.015 11.5)
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 #455150, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.031
- Charcoal Grey #3C4142 ΔE 0.054
- Deep Teal #00555A ΔE 0.057
- Charcoal #264653 ΔE 0.059
- Dark Grey Blue #29465B ΔE 0.060
- YInMn Blue #415A77 ΔE 0.062
- Dark Green Blue #1F6357 ΔE 0.063
- Dark Blue Green #005249 ΔE 0.063
Use #455150 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.