#455447
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.9% 0.028 148.8), rgb(69, 84, 71).
Aa
White text reads best on this color (8.03:1).
About this color
#455447 is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.038 away. White text reads best on it, at 8.03:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #455447 |
| RGB | rgb(69, 84, 71) |
| HSL | hsl(128, 10%, 30%) |
| OKLCH | oklch(42.9% 0.028 148.8) |
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 #455447 | 8.03:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #455447 | 2.61:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #455447 text on white | 8.03:1 | AAA | Lc 87.9 | Fine for body text |
| #455447 text on black | 2.61:1 | Fails | Lc -14.3 | 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
#E8EBE8
oklch(93.7% 0.005 145.5)
-
Step 200
200
#D5DBD6
oklch(88.5% 0.009 150.7)
-
Step 300
300
#BAC4BB
oklch(81% 0.017 148.4)
-
Step 400
400
#96A598
oklch(70.6% 0.025 149.2)
-
Step 500
500
#7C8F7E
oklch(63% 0.033 148.1)
-
Step 600
600
#657A68
oklch(55.7% 0.037 149.1)
-
Step 700
700
#546656
oklch(49% 0.033 148.1)
-
Step 800
800 (this color)
#455447
oklch(42.9% 0.028 148.8)
-
Step 900
900
#3A453B
oklch(37.7% 0.022 147.6)
-
Step 950
950
#222823
oklch(26.9% 0.013 150.2)
#455447 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) | #545146 | 0.024 |
| Deuteranopia (no green cones) | #525048 | 0.023 |
| Tritanopia (no blue cones) | #435350 | 0.016 |
| Achromatopsia (no color) | #505050 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455447
#455447
oklch(42.9% 0.028 148.8)
- #584A57
#584A57
oklch(42.8% 0.028 328.3)
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 #455447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.054
- Pine #2B5D34 ΔE 0.058
- Deep Teal #00555A ΔE 0.060
- Dark Blue Green #005249 ΔE 0.061
- Charcoal Grey #3C4142 ΔE 0.063
- Petrol #005F6A ΔE 0.069
- Dark Teal #014D4E ΔE 0.069
Use #455447 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.