#33474B
Closest named color: Charcoal (#264653). oklch(38.3% 0.026 211.3), rgb(51, 71, 75).
Aa
White text reads best on this color (9.79:1).
About this color
#33474B is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Charcoal (#264653), ΔE 0.021 away. White text reads best on it, at 9.79:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Charcoal (#264653) |
| Black text | 2.14:1 |
| White text | 9.79:1 |
Values
| HEX | #33474B |
| RGB | rgb(51, 71, 75) |
| HSL | hsl(190, 19%, 25%) |
| OKLCH | oklch(38.3% 0.026 211.3) |
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 #33474B | 9.79:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #33474B | 2.14:1 | Fails | Lc 11.2 | Not readable |
| #33474B text on white | 9.79:1 | AAA | Lc 92.7 | Preferred for body text |
| #33474B text on black | 2.14:1 | Fails | Lc -9.7 | 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 900.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D1DBDD
oklch(88.4% 0.011 211)
-
Step 300
300
#B3C4C8
oklch(80.9% 0.019 213.4)
-
Step 400
400
#8BA6AC
oklch(70.7% 0.031 212.7)
-
Step 500
500
#6E9097
oklch(63% 0.039 211.7)
-
Step 600
600
#557A82
oklch(55.5% 0.043 212.6)
-
Step 700
700
#45676E
oklch(49.1% 0.041 211.9)
-
Step 800
800
#395459
oklch(42.6% 0.033 210.3)
-
Step 900
900 (this color)
#33474B
oklch(38.3% 0.026 211.3)
-
Step 950
950
#1D292B
oklch(27.1% 0.017 208.8)
#33474B 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) | #43454B | 0.024 |
| Deuteranopia (no green cones) | #3F424B | 0.023 |
| Tritanopia (no blue cones) | #2B4948 | 0.014 |
| Achromatopsia (no color) | #444444 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33474B
#33474B
oklch(38.3% 0.026 211.3)
- #503E3B
#503E3B
oklch(38.2% 0.026 29.2)
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 #33474B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.021
- Charcoal Grey #3C4142 ΔE 0.022
- Dark Slate Gray #2F4F4F ΔE 0.025
- Dark Grey Blue #29465B ΔE 0.031
- Dark Teal #014D4E ΔE 0.040
- Onyx #343A40 ΔE 0.041
- Dark Blue Green #005249 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.051
Use #33474B 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.