#45404F
Closest named color: Charcoal Grey (#3C4142). oklch(38.2% 0.026 300.4), rgb(69, 64, 79).
Aa
White text reads best on this color (10.00:1).
About this color
#45404F is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.029 away. White text reads best on it, at 10.00:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.09:1 |
| White text | 10.00:1 |
Values
| HEX | #45404F |
| RGB | rgb(69, 64, 79) |
| HSL | hsl(260, 10%, 28%) |
| OKLCH | oklch(38.2% 0.026 300.4) |
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 #45404F | 10.00:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #45404F | 2.09:1 | Fails | Lc 10.7 | Not readable |
| #45404F text on white | 10.00:1 | AAA | Lc 93.2 | Preferred for body text |
| #45404F text on black | 2.09:1 | Fails | Lc -9.3 | 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 900.
-
Step 50
50
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EAE9ED
oklch(93.6% 0.005 297.7)
-
Step 200
200
#DAD8DF
oklch(88.6% 0.01 299.2)
-
Step 300
300
#C2BECC
oklch(80.9% 0.02 299)
-
Step 400
400
#A39DB2
oklch(70.8% 0.031 298.7)
-
Step 500
500
#8D849E
oklch(63% 0.04 301)
-
Step 600
600
#776E89
oklch(55.6% 0.043 300.3)
-
Step 700
700
#645C74
oklch(49.1% 0.039 300.2)
-
Step 800
800
#524B5F
oklch(42.7% 0.034 301)
-
Step 900
900 (this color)
#45404F
oklch(38.2% 0.026 300.4)
-
Step 950
950
#28252D
oklch(27.1% 0.015 302.4)
#45404F 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) | #3D4250 | 0.014 |
| Deuteranopia (no green cones) | #3E424F | 0.013 |
| Tritanopia (no blue cones) | #434245 | 0.021 |
| Achromatopsia (no color) | #424242 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45404F
#45404F
oklch(38.2% 0.026 300.4)
- #414536
#414536
oklch(38.2% 0.025 119.7)
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 #45404F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.029
- Onyx #343A40 ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.043
- Charcoal #264653 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.060
- Purple Brown #673A3F ΔE 0.066
- Gunmetal #293241 ΔE 0.070
Use #45404F 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.