#434255
Closest named color: Charcoal Grey (#3C4142). oklch(38.8% 0.032 287.2), rgb(67, 66, 85).
Aa
White text reads best on this color (9.77:1).
About this color
#434255 is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.032 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.035 away. White text reads best on it, at 9.77:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.14:1 |
| White text | 9.77:1 |
Values
| HEX | #434255 |
| RGB | rgb(67, 66, 85) |
| HSL | hsl(243, 13%, 30%) |
| OKLCH | oklch(38.8% 0.032 287.2) |
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 #434255 | 9.77:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #434255 | 2.14:1 | Fails | Lc 11.3 | Not readable |
| #434255 text on white | 9.77:1 | AAA | Lc 92.7 | Preferred for body text |
| #434255 text on black | 2.14:1 | Fails | Lc -9.8 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D8D8E2
oklch(88.5% 0.014 286.1)
-
Step 300
300
#BFBFD0
oklch(81% 0.024 285.9)
-
Step 400
400
#9E9DB8
oklch(70.6% 0.039 287)
-
Step 500
500
#8785A6
oklch(63% 0.049 287.7)
-
Step 600
600
#716F91
oklch(55.6% 0.052 287.3)
-
Step 700
700
#5F5D7C
oklch(49.2% 0.049 287.4)
-
Step 800
800
#4D4C65
oklch(42.8% 0.041 286.4)
-
Step 900
900 (this color)
#434255
oklch(38.8% 0.032 287.2)
-
Step 950
950
#262530
oklch(27% 0.02 289.1)
#434255 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) | #3D4456 | 0.011 |
| Deuteranopia (no green cones) | #3D4354 | 0.010 |
| Tritanopia (no blue cones) | #3F4548 | 0.028 |
| Achromatopsia (no color) | #444444 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434255
#434255
oklch(38.8% 0.032 287.2)
- #464632
#464632
oklch(38.8% 0.032 107.8)
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 #434255, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.037
- Charcoal #264653 ΔE 0.042
- Onyx #343A40 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.060
- Purple Brown #673A3F ΔE 0.072
- Dark Teal #014D4E ΔE 0.073
Use #434255 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.