#243E33
Closest named color: Onyx (#343A40). oklch(33.9% 0.038 165.6), rgb(36, 62, 51).
Aa
White text reads best on this color (11.59:1).
About this color
#243E33 is a dark, muted green. In OKLCH its lightness is 34%, its chroma 0.038 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.039 away. White text reads best on it, at 11.59:1.
| Hue family | Greens |
| Lightness | dark (34%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.81:1 |
| White text | 11.59:1 |
Values
| HEX | #243E33 |
| RGB | rgb(36, 62, 51) |
| HSL | hsl(155, 27%, 19%) |
| OKLCH | oklch(33.9% 0.038 165.6) |
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 #243E33 | 11.59:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #243E33 | 1.81:1 | Fails | Lc 0.0 | Not readable |
| #243E33 text on white | 11.59:1 | AAA | Lc 96.6 | Preferred for body text |
| #243E33 text on black | 1.81:1 | 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
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#D0DDD7
oklch(88.6% 0.016 166.7)
-
Step 300
300
#B0C7BC
oklch(80.9% 0.029 165.3)
-
Step 400
400
#87AA9A
oklch(70.7% 0.045 165.5)
-
Step 500
500
#689581
oklch(63.1% 0.058 165.3)
-
Step 600
600
#4E7F6B
oklch(55.5% 0.062 166.4)
-
Step 700
700
#3F6B59
oklch(49% 0.057 166.1)
-
Step 800
800
#345849
oklch(42.8% 0.049 165.8)
-
Step 900
900 (this color)
#243E33
oklch(33.9% 0.038 165.6)
-
Step 950
950
#1B2A24
oklch(26.9% 0.023 167.9)
#243E33 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) | #3D3B32 | 0.037 |
| Deuteranopia (no green cones) | #393834 | 0.036 |
| Tritanopia (no blue cones) | #1D3E3B | 0.015 |
| Achromatopsia (no color) | #393939 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #243E33
#243E33
oklch(33.9% 0.038 165.6)
- #46303C
#46303C
oklch(33.9% 0.037 345.4)
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 #243E33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.039
- Pakistan Green #283618 ΔE 0.042
- Evergreen #05472A ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.051
- Midnight Green #073B4C ΔE 0.053
- Charcoal #264653 ΔE 0.055
- Gunmetal #293241 ΔE 0.055
Use #243E33 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.