#404154
Closest named color: Charcoal Grey (#3C4142). oklch(38.2% 0.032 282.4), rgb(64, 65, 84).
Aa
White text reads best on this color (9.98:1).
About this color
#404154 is a dark, muted purple. In OKLCH its lightness is 38%, its chroma 0.032 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.033 away. White text reads best on it, at 9.98:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.10:1 |
| White text | 9.98:1 |
Values
| HEX | #404154 |
| RGB | rgb(64, 65, 84) |
| HSL | hsl(237, 14%, 29%) |
| OKLCH | oklch(38.2% 0.032 282.4) |
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 #404154 | 9.98:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #404154 | 2.10:1 | Fails | Lc 10.7 | Not readable |
| #404154 text on white | 9.98:1 | AAA | Lc 93.2 | Preferred for body text |
| #404154 text on black | 2.10:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D7D8E2
oklch(88.4% 0.014 281.5)
-
Step 300
300
#BEBFD0
oklch(80.9% 0.024 283.2)
-
Step 400
400
#9C9EB9
oklch(70.7% 0.039 282)
-
Step 500
500
#8486A7
oklch(63% 0.049 282.2)
-
Step 600
600
#6E7092
oklch(55.6% 0.053 281.9)
-
Step 700
700
#5C5D7D
oklch(49% 0.051 282.9)
-
Step 800
800
#4B4C65
oklch(42.6% 0.041 282.7)
-
Step 900
900 (this color)
#404154
oklch(38.2% 0.032 282.4)
-
Step 950
950
#252530
oklch(26.9% 0.02 285)
#404154 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) | #3C4355 | 0.008 |
| Deuteranopia (no green cones) | #3B4253 | 0.009 |
| Tritanopia (no blue cones) | #3C4447 | 0.028 |
| Achromatopsia (no color) | #424242 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404154
#404154
oklch(38.2% 0.032 282.4)
- #464430
#464430
oklch(38.3% 0.032 103)
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 #404154, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.034
- Charcoal #264653 ΔE 0.038
- Onyx #343A40 ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.054
- Gunmetal #293241 ΔE 0.068
- Prussian Blue #1D3557 ΔE 0.068
Use #404154 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.