#45535C
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43.4% 0.023 236.3), rgb(69, 83, 92).
Aa
White text reads best on this color (7.93:1).
About this color
#45535C is a dark close to neutral grey. In OKLCH its lightness is 43%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.040 away. White text reads best on it, at 7.93:1.
| Hue family | Neutrals |
| Lightness | dark (43%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.64:1 |
| White text | 7.93:1 |
Values
| HEX | #45535C |
| RGB | rgb(69, 83, 92) |
| HSL | hsl(203, 14%, 32%) |
| OKLCH | oklch(43.4% 0.023 236.3) |
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 #45535C | 7.93:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #45535C | 2.64:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #45535C text on white | 7.93:1 | AAA | Lc 87.5 | Fine for body text |
| #45535C text on black | 2.64:1 | Fails | Lc -14.6 | 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
#D5DADD
oklch(88.5% 0.007 233.7)
-
Step 300
300
#B9C2C8
oklch(80.9% 0.013 236.7)
-
Step 400
400
#94A3AC
oklch(70.7% 0.022 234)
-
Step 500
500
#7A8C98
oklch(63% 0.028 237.1)
-
Step 600
600
#637683
oklch(55.5% 0.03 238)
-
Step 700
700
#52636F
oklch(49% 0.028 238.9)
-
Step 800
800 (this color)
#45535C
oklch(43.4% 0.023 236.3)
-
Step 900
900
#39434A
oklch(37.7% 0.018 238.5)
-
Step 950
950
#21272B
oklch(26.8% 0.011 237.1)
#45535C 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) | #4F535C | 0.015 |
| Deuteranopia (no green cones) | #4C505C | 0.013 |
| Tritanopia (no blue cones) | #3F5556 | 0.016 |
| Achromatopsia (no color) | #515151 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45535C
#45535C
oklch(43.4% 0.023 236.3)
- #5B4E45
#5B4E45
oklch(43.4% 0.023 56.8)
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 #45535C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.040
- YInMn Blue #415A77 ΔE 0.044
- Dusty Grape #545775 ΔE 0.048
- Deep Teal #00555A ΔE 0.058
- Petrol #005F6A ΔE 0.058
- Dark Grey Blue #29465B ΔE 0.059
- Charcoal #264653 ΔE 0.062
- Slate #516572 ΔE 0.062
Use #45535C 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.