#33413D
Closest named color: Charcoal Grey (#3C4142). oklch(36.1% 0.019 175.9), rgb(51, 65, 61).
Aa
White text reads best on this color (10.69:1).
About this color
#33413D is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.017 away. White text reads best on it, at 10.69:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.96:1 |
| White text | 10.69:1 |
Values
| HEX | #33413D |
| RGB | rgb(51, 65, 61) |
| HSL | hsl(163, 12%, 23%) |
| OKLCH | oklch(36.1% 0.019 175.9) |
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 #33413D | 10.69:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #33413D | 1.96:1 | Fails | Lc 9.1 | Not readable |
| #33413D text on white | 10.69:1 | AAA | Lc 94.8 | Preferred for body text |
| #33413D text on black | 1.96:1 | Fails | Lc -7.8 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D4DBD9
oklch(88.5% 0.008 177.3)
-
Step 300
300
#B7C4C0
oklch(80.9% 0.015 175.6)
-
Step 400
400
#92A6A0
oklch(70.8% 0.024 175.6)
-
Step 500
500
#779089
oklch(63.2% 0.03 176.5)
-
Step 600
600
#607A72
oklch(55.6% 0.033 174.3)
-
Step 700
700
#4F6760
oklch(49.2% 0.031 175.2)
-
Step 800
800
#41544E
oklch(42.8% 0.026 173.8)
-
Step 900
900 (this color)
#33413D
oklch(36.1% 0.019 175.9)
-
Step 950
950
#202826
oklch(26.8% 0.012 178.5)
#33413D 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) | #403F3D | 0.021 |
| Deuteranopia (no green cones) | #3D3D3D | 0.020 |
| Tritanopia (no blue cones) | #304140 | 0.006 |
| Achromatopsia (no color) | #3E3E3E | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33413D
#33413D
oklch(36.1% 0.019 175.9)
- #46393E
#46393E
oklch(36% 0.02 353)
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 #33413D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.017
- Onyx #343A40 ΔE 0.026
- Charcoal #264653 ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.050
- Dark Teal #014D4E ΔE 0.051
- Gunmetal #293241 ΔE 0.057
Use #33413D 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.