#434455
Closest named color: Charcoal Grey (#3C4142). oklch(39.3% 0.029 282.3), rgb(67, 68, 85).
Aa
White text reads best on this color (9.55:1).
About this color
#434455 is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.035 away. White text reads best on it, at 9.55:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.19:1 |
| White text | 9.55:1 |
Values
| HEX | #434455 |
| RGB | rgb(67, 68, 85) |
| HSL | hsl(237, 12%, 30%) |
| OKLCH | oklch(39.3% 0.029 282.3) |
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 #434455 | 9.55:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #434455 | 2.19:1 | Fails | Lc 11.8 | Not readable |
| #434455 text on white | 9.55:1 | AAA | Lc 92.1 | Preferred for body text |
| #434455 text on black | 2.19:1 | Fails | Lc -10.3 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D8D8E1
oklch(88.5% 0.012 286.1)
-
Step 300
300
#BEBFCF
oklch(80.9% 0.022 283)
-
Step 400
400
#9D9EB6
oklch(70.6% 0.035 283.6)
-
Step 500
500
#8587A4
oklch(63.2% 0.043 282)
-
Step 600
600
#6F708F
oklch(55.6% 0.048 283.3)
-
Step 700
700
#5C5E7A
oklch(49.1% 0.045 281.4)
-
Step 800
800
#4C4D63
oklch(42.8% 0.036 282.7)
-
Step 900
900 (this color)
#434455
oklch(39.3% 0.029 282.3)
-
Step 950
950
#25252F
oklch(26.9% 0.018 285.1)
#434455 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) | #404656 | 0.007 |
| Deuteranopia (no green cones) | #3F4555 | 0.007 |
| Tritanopia (no blue cones) | #3F474A | 0.025 |
| Achromatopsia (no color) | #454545 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434455
#434455
oklch(39.3% 0.029 282.3)
- #484635
#484635
oklch(39.1% 0.027 102)
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 #434455, 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 0.036
- Charcoal #264653 ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.047
- Onyx #343A40 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.063
- Dark Teal #014D4E ΔE 0.070
- Purple Brown #673A3F ΔE 0.072
Use #434455 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.