#243D34
Closest named color: Onyx (#343A40). oklch(33.6% 0.035 169.4), rgb(36, 61, 52).
Aa
White text reads best on this color (11.71:1).
About this color
#243D34 is a dark, muted green. In OKLCH its lightness is 34%, its chroma 0.035 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.036 away. White text reads best on it, at 11.71:1.
| Hue family | Greens |
| Lightness | dark (34%) |
| Chroma | muted (0.035) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.79:1 |
| White text | 11.71:1 |
Values
| HEX | #243D34 |
| RGB | rgb(36, 61, 52) |
| HSL | hsl(158, 26%, 19%) |
| OKLCH | oklch(33.6% 0.035 169.4) |
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 #243D34 | 11.71:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #243D34 | 1.79:1 | Fails | Lc 0.0 | Not readable |
| #243D34 text on white | 11.71:1 | AAA | Lc 96.9 | Preferred for body text |
| #243D34 text on black | 1.79:1 | Fails | Lc 0.0 | 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
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D0DCD7
oklch(88.4% 0.015 169.2)
-
Step 300
300
#B1C6BE
oklch(80.8% 0.025 170.8)
-
Step 400
400
#87A99C
oklch(70.6% 0.042 169.8)
-
Step 500
500
#699484
oklch(63% 0.053 169.5)
-
Step 600
600
#4F7F6E
oklch(55.7% 0.059 169.7)
-
Step 700
700
#406B5C
oklch(49.2% 0.054 169.8)
-
Step 800
800
#35574B
oklch(42.7% 0.045 169.8)
-
Step 900
900 (this color)
#243D34
oklch(33.6% 0.035 169.4)
-
Step 950
950
#1C2A25
oklch(27% 0.021 170.6)
#243D34 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) | #3C3A34 | 0.036 |
| Deuteranopia (no green cones) | #373735 | 0.034 |
| Tritanopia (no blue cones) | #1D3D3A | 0.012 |
| Achromatopsia (no color) | #383838 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #243D34
#243D34
oklch(33.6% 0.035 169.4)
- #45303A
#45303A
oklch(33.7% 0.034 349)
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 #243D34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.036
- Pakistan Green #283618 ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.047
- Evergreen #05472A ΔE 0.048
- Midnight Green #073B4C ΔE 0.050
- Gunmetal #293241 ΔE 0.051
- Charcoal #264653 ΔE 0.055
Use #243D34 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.