#2C433F
Closest named color: Charcoal Grey (#3C4142). oklch(36.2% 0.03 182.6), rgb(44, 67, 63).
Aa
White text reads best on this color (10.59:1).
About this color
#2C433F is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.025 away. White text reads best on it, at 10.59:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.98:1 |
| White text | 10.59:1 |
Values
| HEX | #2C433F |
| RGB | rgb(44, 67, 63) |
| HSL | hsl(170, 21%, 22%) |
| OKLCH | oklch(36.2% 0.03 182.6) |
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 #2C433F | 10.59:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #2C433F | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #2C433F text on white | 10.59:1 | AAA | Lc 94.5 | Preferred for body text |
| #2C433F text on black | 1.98:1 | Fails | Lc -8.0 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D1DCDA
oklch(88.6% 0.012 184)
-
Step 300
300
#B2C6C2
oklch(81% 0.022 182.4)
-
Step 400
400
#89A8A2
oklch(70.6% 0.035 182.2)
-
Step 500
500
#6B938C
oklch(63.2% 0.045 182.8)
-
Step 600
600
#527D76
oklch(55.6% 0.049 183.2)
-
Step 700
700
#426963
oklch(49% 0.045 183.7)
-
Step 800
800
#375651
oklch(42.7% 0.038 183.3)
-
Step 900
900 (this color)
#2C433F
oklch(36.2% 0.03 182.6)
-
Step 950
950
#1C2A27
oklch(27.1% 0.02 180)
#2C433F 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) | #41403F | 0.032 |
| Deuteranopia (no green cones) | #3D3D3F | 0.031 |
| Tritanopia (no blue cones) | #254442 | 0.009 |
| Achromatopsia (no color) | #3F3F3F | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C433F
#2C433F
oklch(36.2% 0.03 182.6)
- #4B373C
#4B373C
oklch(36.1% 0.03 2.1)
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 #2C433F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.025
- Onyx #343A40 ΔE 0.032
- Charcoal #264653 ΔE 0.033
- Dark Teal #014D4E ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.047
- Dark Blue Green #005249 ΔE 0.051
Use #2C433F 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.