#445257
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.8% 0.019 221.4), rgb(68, 82, 87).
Aa
White text reads best on this color (8.10:1).
About this color
#445257 is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.034 away. White text reads best on it, at 8.10:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.59:1 |
| White text | 8.10:1 |
Values
| HEX | #445257 |
| RGB | rgb(68, 82, 87) |
| HSL | hsl(196, 12%, 30%) |
| OKLCH | oklch(42.8% 0.019 221.4) |
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 #445257 | 8.10:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #445257 | 2.59:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #445257 text on white | 8.10:1 | AAA | Lc 88.1 | Fine for body text |
| #445257 text on black | 2.59:1 | Fails | Lc -14.1 | 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 800.
-
Step 50
50
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D5DADC
oklch(88.5% 0.006 223.5)
-
Step 300
300
#B9C2C6
oklch(80.8% 0.011 226)
-
Step 400
400
#95A3A9
oklch(70.6% 0.018 225.3)
-
Step 500
500
#7B8D94
oklch(63.1% 0.023 223.2)
-
Step 600
600
#64777E
oklch(55.6% 0.025 222.1)
-
Step 700
700
#52646A
oklch(49% 0.024 220)
-
Step 800
800 (this color)
#445257
oklch(42.8% 0.019 221.4)
-
Step 900
900
#394447
oklch(37.8% 0.015 216)
-
Step 950
950
#21282A
oklch(27.1% 0.011 216.9)
#445257 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) | #4F5157 | 0.017 |
| Deuteranopia (no green cones) | #4C4F57 | 0.014 |
| Tritanopia (no blue cones) | #3F5453 | 0.013 |
| Achromatopsia (no color) | #505050 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445257
#445257
oklch(42.8% 0.019 221.4)
- #594C47
#594C47
oklch(42.8% 0.019 42.2)
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 #445257, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.034
- YInMn Blue #415A77 ΔE 0.052
- Deep Teal #00555A ΔE 0.055
- Dusty Grape #545775 ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.058
- Charcoal #264653 ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.059
- Petrol #005F6A ΔE 0.060
Use #445257 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.