#33434E
Closest named color: Charcoal (#264653). oklch(37.4% 0.028 238.5), rgb(51, 67, 78).
Aa
White text reads best on this color (10.22:1).
About this color
#33434E is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Charcoal (#264653), ΔE 0.018 away. White text reads best on it, at 10.22:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Charcoal (#264653) |
| Black text | 2.05:1 |
| White text | 10.22:1 |
Values
| HEX | #33434E |
| RGB | rgb(51, 67, 78) |
| HSL | hsl(204, 21%, 25%) |
| OKLCH | oklch(37.4% 0.028 238.5) |
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 #33434E | 10.22:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #33434E | 2.05:1 | Fails | Lc 10.2 | Not readable |
| #33434E text on white | 10.22:1 | AAA | Lc 93.7 | Preferred for body text |
| #33434E text on black | 2.05:1 | Fails | Lc -8.8 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B5C3CD
oklch(80.9% 0.021 238.7)
-
Step 400
400
#8EA4B4
oklch(70.7% 0.034 239.6)
-
Step 500
500
#728EA1
oklch(63.2% 0.043 238)
-
Step 600
600
#5A788C
oklch(55.7% 0.047 237.9)
-
Step 700
700
#4A6577
oklch(49.2% 0.043 238)
-
Step 800
800
#3D5261
oklch(42.7% 0.036 239.7)
-
Step 900
900 (this color)
#33434E
oklch(37.4% 0.028 238.5)
-
Step 950
950
#1F282E
oklch(27.1% 0.017 237.4)
#33434E 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) | #3E434F | 0.017 |
| Deuteranopia (no green cones) | #3B404E | 0.015 |
| Tritanopia (no blue cones) | #2A4646 | 0.023 |
| Achromatopsia (no color) | #414141 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33434E
#33434E
oklch(37.4% 0.028 238.5)
- #4C3D32
#4C3D32
oklch(37.3% 0.028 58)
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 #33434E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.018
- Charcoal Grey #3C4142 ΔE 0.022
- Dark Grey Blue #29465B ΔE 0.023
- Onyx #343A40 ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.039
- Dark Teal #014D4E ΔE 0.048
- Midnight Green #073B4C ΔE 0.055
Use #33434E 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.