#434A52
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.6% 0.016 251.7), rgb(67, 74, 82).
Aa
White text reads best on this color (8.97:1).
About this color
#434A52 is a dark close to neutral grey. In OKLCH its lightness is 41%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.032 away. White text reads best on it, at 8.97:1.
| Hue family | Neutrals |
| Lightness | dark (41%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.34:1 |
| White text | 8.97:1 |
Values
| HEX | #434A52 |
| RGB | rgb(67, 74, 82) |
| HSL | hsl(212, 10%, 29%) |
| OKLCH | oklch(40.6% 0.016 251.7) |
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 #434A52 | 8.97:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #434A52 | 2.34:1 | Fails | Lc 13.4 | Not readable |
| #434A52 text on white | 8.97:1 | AAA | Lc 90.6 | Preferred for body text |
| #434A52 text on black | 2.34:1 | Fails | Lc -11.7 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D7D9DC
oklch(88.5% 0.005 258.3)
-
Step 300
300
#BCC1C7
oklch(80.9% 0.01 252.8)
-
Step 400
400
#9AA1AA
oklch(70.6% 0.015 254.6)
-
Step 500
500
#818B95
oklch(63.2% 0.019 248.1)
-
Step 600
600
#6B7480
oklch(55.6% 0.022 255.6)
-
Step 700
700
#59626C
oklch(49.2% 0.02 251)
-
Step 800
800 (this color)
#434A52
oklch(40.6% 0.016 251.7)
-
Step 900
900
#3D4248
oklch(37.7% 0.012 253)
-
Step 950
950
#24272A
oklch(27.1% 0.007 248.1)
#434A52 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) | #474A52 | 0.006 |
| Deuteranopia (no green cones) | #454952 | 0.004 |
| Tritanopia (no blue cones) | #3F4C4D | 0.014 |
| Achromatopsia (no color) | #494949 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #434A52
#434A52
oklch(40.6% 0.016 251.7)
- #4F4840
#4F4840
oklch(40.6% 0.016 71.1)
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 #434A52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.032
- Charcoal Grey #3C4142 ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.042
- Charcoal #264653 ΔE 0.043
- Deep Teal #00555A ΔE 0.061
- Onyx #343A40 ΔE 0.061
- Dark Teal #014D4E ΔE 0.062
- YInMn Blue #415A77 ΔE 0.067
Use #434A52 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.